Yacon (Smallanthus sonchifolius) Flower, Leaf, Care, Uses

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Plant Encyclopedia > Yacon

Care Guide for Yacon

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Soil Care

Sand, Chalky, Acidic, Neutral, Alkaline

Details on Soil Care

Ideal Lighting

Full sun

Details on Sunlight Requirements

Ideal Temperature

7 to 10

Details on Temperature

Planting Time

Spring

Details on Planting Time

Harvest Time

Mid fall, Late fall, Early winter

Details on Harvest Time

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Yacon

Water

Every week

Hardiness Zones

7 to 10

Planting Time

Spring

Questions About Yacon

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Watering

Pruning

Sunlight

Temperature

Fertilizing

What is the best way to water my Yacon?

Not only does the Yacon have certain preferences regarding how much water it receives, but it also cares deeply about how you provide that water. In fact, if you don't use the proper watering technique, you risk harming your tomatoes. The best way to water Yacon is to apply the water directly to the soil in a slow and gentle manner. You should not pour all of the water into the soil at once, and you should not do overhead watering for your Yacon. Although you should water slowly, you should also water deeply to ensure that all of the soil in which your Yacon grows is sufficiently moist.

What should I do if I water my Yacon too much or too little?

If you find that you have overwatered your Yacon and you are concerned about the associated risk of disease, you should intervene immediately. Often the best approach for an overwatered Yacon is to uproot it from its current growing location. Once the plant is out of the ground, you can allow its roots to dry a bit before planting it in a new growing location. Ensure that the new growing location has soil with good drainage. If you grow in pots, you may also want to move your plant to a pot with more or larger drainage holes. In the case of underwatering, all you will need to do is increase the frequency with which you supply water to your plant.

How often should I water my Yacon?

Overall, Yacon requires a significant amount of water throughout the growing season. To meet that high water need, you'll need to water early and often throughout the spring and summer. During the earlier parts of the growing season, you should water your Yacon about once or twice per week. As the season progresses, you should increase your watering frequency. You may need to water it twice per day or more during summer, depending on the weather. After your Yacon have gone through their major seasonal growth phases, you can reduce the frequency of your watering to about once per week until the end of the growing season.

How much water does my Yacon need?

Since Yacon are incredibly popular, with many professional and amateur gardeners growing them successfully, we have a pretty clear idea of how to care for these plants. That understanding includes specific knowledge about the precise volume of water an average Yacon should receive. Generally, Yacon will require about 1 - 1.5 inches of water per week. That volume should be dispersed evenly through your weekly watering. As the weather gets warmer, you may need to supply more water, but in most cases, two inches per week is a good baseline amount.

How can I tell if i'm watering my Yacon enough?

Underwatering and overwatering can both occur as problems for your Yacon, and both these problems can manifest with similar symptoms. For example, foliage discoloration and wilting can both result from either overwatering or underwatering. When your Yacon is underwatered, its leaves will be curling and drooping at the beginning. You will see a bunch of leaves turn less vigorous. Underwatering is also likely to cause stunted growth and poor overall development as both the flowers and this plant require a high amount of water. Overwatering is more likely to lead to disease, including rot. Overwatering may also lead to unpleasant smells rising from your plant's soil. The symptoms of underwatering will show up quicker than overwatering. Overwatering can also be evident in soil conditions. Mainly, if you notice a lot of standing water or waterlogged soils, overwatering is likely to occur.

How should I water my Yacon through the seasons?

As alluded to above, your Yacon's water needs will repeatedly change throughout the seasons. During most of spring and summer, you should water your Yacon about once every week. As the heat of summer arrives, you should plan to increase your watering frequency to once or twice per day. In the late summer and fall, towards the end of the harvest period, you can reduce your watering frequency to about once per week. After harvest has ended, you can cease watering as your Yacon has reached the end of its life cycle and will require no further soil moisture. The maintenance schedule of Yacon will require you to alter the amount of water you provide depending on the plant's current growth stage. Early on, especially if you grow your Yacon from seeds, you'll need to provide water often enough to maintain consistent soil moisture, which encourages root development. When the plant becomes old enough to produce flowers, it will likely need even more water. During the fruit development growth stage, your Yacon will likely need the most water out of any growth period, at times requiring water more than twice per day. Following that phase, the water needs of Yacon will decline significantly.

What's the difference between watering Yacon indoors and outdoors?

Whether you grow Yacon indoors or outdoors can also play a role in how you water them. Yacon that grows outdoors may receive water from natural rainfall, which will reduce the amount of supplemental water you should supply. However, it is incredibly rare for rainfall to adequately replace your watering entirely. Plants that grow indoors, along with any Yacon that grows in a container, will need to be watered more frequently than those that grow in the ground outdoors. If you choose this route, please make sure that the plant gets enough water by checking the soil moisture within your pot often to keep your Yacon healthy.

Does my Yacon need to be pruned?

While you can let Yacon run wild, you’ll get a better crop yield and healthier plants when you prune them. Yacon are very susceptible to fungus when not pruned properly as it flourishes in areas where there’s a lot of moisture from rotting fruits, weeds, and dead/dying leaves. Proper upkeep by removing diseased, dead, or yellow leaves can reduce the amount of organic matter for the fungus to grow. Besides preventing disease, pruning your Yacon can also yield more fruit during harvest. Pinching back some of the smaller flower blooms will allow the plant to focus its energy on producing flowers and fruits. Once the fruits have emerged, you can also thin out the smaller ones to reduce resource competition.

When is the best time to prune my Yacon?

When to prune depends a lot on the Yacon growth phase. You should avoid removing any healthy foliage before the plant starts flowering and fruiting as it can have a negative effect on fruit yield. With that said, you can remove dead leaves at any time as that will keep your plant healthy and ward off potential pests and diseases. Look for any leaves that are yellow or brown and have lost their glossiness. Leaving behind dead leaves can prevent air circulation, which can result in the growth of fungus(spot on leaf or mold on fruit). As your fruits start growing and ripening, keep an eye out for overcrowding. The more fruits there are on a plant, the smaller they will grow. Plus, too many fruits can lead to poor air circulation, which can lead to fungus. Removing some of the fruits won’t harm overall yield too much. Plus, most people will plant more than one for their garden. In fact, you should probably expect to have around 7 to 10 plants per person to ensure enough fruit during the season.

What should I do after pruning my Yacon?

After pruning, always remove any clippings from the bed either by composting or disposing of them. Always make sure to fertilize and water the plants after you clear the debris as it can help give enough energy and nutrients to form new buds and crops. To ensure maximum fruit production the following year, make sure to give the plants at least one inch of water a week after you move them up until the first frost. When you’ve collected the last harvest and mowed back the plants, place a layer of mulch on top of the plants to protect them against the cold winter. Low temperatures can damage roots and crowns, leading to little to no yield the following spring. The best mulch to use is clean hay or straw as they won’t mat down and smother the plants.

How can I prune my Yacon during different growth stages?

Sure, wild Yacon might grow just fine without pruning, but for the healthiest plants and best yields, you’ll want to prune your plant. In the first year of planting, pinch back the flowers on all varieties to encourage vigorous growth. Prune prune back the first growth of flowers and then allow the other flowers to bloom. During their second season and onwards, you can let the plant flower as normal and focus only on removing old and/or dead leaves. Some gardeners also suggest keeping the number of fruit low on the plant as it could help reduce competition and lead to larger fruit sizes. However, this technique is disputed and not used in many greenhouses. You can always test it out by removing small fruits from a few plants to see if the overall size of the finished fruit is larger than on your other plants.

How can I prune my Yacon during different seasons?

There are a few times throughout the year when you’ll want to prune Yacon. If you’re putting new plants in the ground, you should prune only after the plant has already started to blossom and/or fruit as removing any healthy leaves can affect fruit production. Only remove leaves that are yellowed or diseased. You can do this throughout the growing season to keep your plants healthy. You can start pinching back blossoms when they bloom in the spring/summer and fruits during the summer.

What are other tips and tricks for pruning my Yacon?

The Yacon is particularly susceptible to fungus that occurs in damp environments with poor circulation. If you’re growing Yacon in matted rows, it’s easy for this fungus to spread, so you’ll want to keep your bed neatly pruned. Affected plants will have blossoms and fruits covered in a dusty, fungus. If you notice fungus (spot on leaf or mold on fruit), prune infected blossoms, fruits, and dead leaves immediately.

Are there any instructions for pruning my Yacon?

Pruning your Yacon means higher fruit yields, and who doesn’t want that? You’ll need some gardening gloves and sharp scissors or garden shears for clean cuts. You should check for any dead or old leaves and remove them as necessary throughout the spring and summer months. If you notice any disease or rot, remove the entire plant and soil to prevent the spread of infection. When pinching back flowers, prune the stalks at the base where they join the rest of the plant. Only remove the smallest flowers at first as those will produce the smallest fruit. You can also use a pair of scissors if you have a lot of Yacons, but you should look carefully before making your cut as you could accidentally cut off healthy flowers. If you decide not to pinch back the flowers, you may need to remove unripe fruit if you notice the plant getting too crowded. Remove any damaged fruit along with fruit that are significantly smaller than the others and/or aren’t developing properly. You should use a pair of sharp scissors and cut.

Are there any other tips and tricks for pruning my Yacon?

Yacon is particularly susceptible to fungus that occurs in damp environments with poor circulation. If you’re growing Yacon in matted rows, it’s easy for this fungus to spread, so you’ll want to keep your bed neatly pruned. Affected plants will have blossoms and fruits covered in a dusty, fungus. If you notice fungus (spot on leaf or mold on fruit), prune infected blossoms, fruits, and dead leaves immediately.

How much sunlight does Yacon need to grow?

Exact needs vary, but a minimum of 6 to 8 hours per day is a good rule of thumb for Yacon to grow and produce fruit.

What type of sunlight does Yacon need?

Yacon requires full sun, meaning that it should be grown in a location that gets direct sunlight that isn’t blocked by obstacles such as trees, fences, or buildings. In general, the faster the plant grows, the more hours of sunlight it will need. Morning sun is best for photosynthesis.

Should I protect Yacon from sun exposure?

Yacon should not need to be protected from the sun in most climates. Those who live in a desert or near the equator may find that the sun is too harsh for the types of plants they want to grow, but this is the exception.

What will happen if Yacon doesn't get enough sunlight?

All plants need sunlight to convert into energy. Plants that have a short growing season need even more light and energy than those that grow slowly, as they need to complete all their processes to grow and produce fruit within just a few months. The first symptoms of insufficient sunlight in Yacon are pale and yellow leaves that are not able to generate enough chlorophyll to keep their healthy green color. The leaves may eventually fall off, and new growth is small and weak. The plant may become leggy and sparse as it stretches toward the available light. Finally, without enough light the plant will not be able to produce large, high-quality edible leaves or fruit. Yacon needs to devote a lot of energy into growing leaves and fruits, so if there isn’t enough light available for it to convert, the harvest will suffer.

What will happen if Yacon gets too much sunlight?

Yacon can get sunburned from intense sunlight, especially when coupled with high temperatures and not having enough water. Afternoon sun tends to be most likely to burn plants. Scalded leaves develop faded patches of light brown to white on the areas at the top of the plant that are exposed to the most sun. They are especially vulnerable to this right after being transplanted from a shadier location to being in full sun. Transitioning plants gradually or providing them with a barrier while they are adjusting can help prevent sunscald in young plants. In many cases, Yacon develops leaves that are large enough to protect fruits from the strongest rays of the sun. However, if intense sunlight is in contact with fruits, they can also be damaged. Avoid over-pruning those protective leaves so that the fruits don’t get burned.

Are there any cautions or tips for sunlight and Yacon?

Yacon may become unbalanced if it gets significantly more light on one side than the other. Ideally, you can plant your Yacon in a location away from obstacles that might block light, and where the distribution of sunlight is even on all sides. Be careful about planting tall species next to those that grow closer to the ground. It may not be obvious when the crops are first planted, but over time the taller plants may begin to block the amount of sunlight that can reach the shorter plants. Morning sun helps to dry dew and precipitation, which helps prevent infection from diseases that can develop when water sits on the plant. If you are watering or irrigating your Yacon, this should be done in the morning.

What is the optimal temperature for Yacon?

There is an ideal temperature range that makes Yacon feel at home. Under these temperature conditions, it's unlikely that you’ll have any issues with cold or hot damage to the foliage, but changing leaf colors can absolutely be a sign that Yacon isn’t happy. Try to keep your Yacon well within its preferred range of 70-85℉(21-30℃), but don’t panic if the temperature creeps up past 85℉(30℃) during the day or down to 70℉(21℃) at night.

How can I protect Yacon from extreme temperatures outdoors?

If your Yacon happens to be planted outside, then there’s not much you can do to try to move it indoors. However, you can certainly provide cover in ways that will help it survive any extreme temperatures that may arise unexpectedly. For instance, you can always use a few stakes and some cloth to put together a shade tent that will block out much of the sun’s intense heat from direct sunlight exposure. Similarly, Yacon can be protected from the extreme cold and especially chilly winds by building a small greenhouse around the plant, which will create a greenhouse effect and warm the plant up. This can be done using garden stakes and any sort of clear or translucent plastic you may have around; if you have greenhouse plastic such as polycarbonate laying around, this works perfectly. Remove the greenhouse once temperatures warm up to 40℉(10℃) at night.

Does Yacon need different temperatures in different seasons?

Generally speaking, Yacon needs to stay within its preferred temperature range all year long. However, that doesn’t mean that care should stay the same all year long. During the warmest months of the year, Yacon will need a little extra shade and a bit more of a breeze to help it cope with the hottest days. On the other hand, it may need to be moved away from chilly windows and doors during the cooler months in climates where temperatures drop below 40℉(10℃) at any point in the year.

What is the best way to maintain the right temperature for my Yacon?

Keeping your Yacon at the right temperature can be fairly simple. Depending on where you grow it, Yacon can be fairly easy to accommodate. For indoor growing, you can easily move the plant to different locations within your indoor space that best meet its temperature requirements. Avoid placing it near air conditioning vents, heaters, doors that open frequently, or drafty windows. It is a little more difficult to control the temperature around your Yacon if it’s grown outside. Of course, if it’s planted in a pot, you can simply bring it indoors when the temperatures outside get too hot or too cold for Yacon, but otherwise, you may need to take different measures to protect it from extreme heat or cold that may damage it irreversibly. Try placing Yacon under cover to protect from both the harsh sun that can overheat it and any cold wind that could be potentially deadly for your plant.

Why do I need to fertilize my Yacon?

Yacon typically grows quickly, and uses a lot of energy to create the root vegetables we enjoy. Along with sunlight, oxygen, and water, Yacon species require nutrients to grow and produce roots. While these nutrients are generally present in garden soil because of the natural organic matter decomposition in and on top of the soil, there may be some cases where the nutrients are not abundant enough to support healthy Yacon growth. In these cases, fertilizer provides the boost that the Yacon needs.

When is the best time to fertilize my Yacon?

Apply natural fertilizer to your soil to prepare it for planting. There is no particular time frame you are required to follow, but be sure you have enough time to incorporate the fertilizer into the soil and water it thoroughly before putting seeds or seedlings in the ground. In general, one application of fertilizer is enough to keep Yacon growing well throughout the season, but you can do one additional application once the seedlings have started to establish themselves if you want to boost their yield even more. Just be careful not to use too much fertilizer that could damage the plants.

When should I avoid fertilizing my Yacon?

Avoid fertilizing when conditions are dry, and always water plants thoroughly after fertilizing. All types of fertilizer are most effective when delivered through moist soil. Don’t use high-nitrogen fertilizers unless developing a lot of foliage is more important to you than the root crops. Be careful not to let fertilizer touch the base of the plant or splash onto leaves or stems, since this can cause the plant to burn.

What type of fertilizer does my Yacon need?

Most people grow Yacon in order to harvest the roots, although in many cases the foliage is also edible. To promote a healthy root system, choose a fertilizer with more phosphate and potassium compared with the amount of nitrogen. Bone meal and kelp are great choices for natural fertilizers, but chemical fertilizers can also be used. Just make sure the fertilizer doesn’t contain a large amount of nitrogen, since that is a less important nutrient for this particular vegetable. The best way to determine what type of fertilizer to use for growing Yacon is to take a soil sample from the part of your garden that you are planning to use. Testing the soil will tell you which nutrients are needed, along with other important factors such as density and pH level. All of these factors contribute to your plant’s success, so it is a good idea to think of it holistically and treat the soil accordingly.

How do I fertilize my Yacon?

Fertilize Yacon by mixing an organic fertilizer such as bone meal or kelp into the soil prior to planting. If you need to fertilize again during the season, do so by using a layer of compost or well-rotted manure as mulch around (but not touching) the base of your Yacon. This material will break down gradually, allowing nutrients to soak through to the roots below. For liquid fertilizers, dilute the fertilizer with water according to the instructions for your particular crop and spray it on the ground around the Yacon, being careful not to splash the plant. Granular fertilizers can be sprinkled around the base of the plant or between rows, or worked into the top layer of soil to keep the granules from being washed or blown away.

What happens if I fertilize my Yacon too much?

Too much fertilizer (especially chemical fertilizer) causes the plant to become stressed. Fertilizer burn is caused by excess salts that are contained in chemicals, which can dehydrate plant cells and cause yellowing and wilted foliage. Be aware that fertilizer burn symptoms can also look very similar to other issues including nutrient deficiency, so be sure to consider all the factors when diagnosing the issue with your Yacon. Too much nitrogen fertilizer can cause energy to be diverted to foliage growth, leaving the roots and other parts of the plant with less resources. This can be especially disappointing when harvesting a plant that looks very healthy and vigorous above the ground, since the produce it creates doesn’t match its appearance.

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Key Facts About Yacon

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Attributes of Yacon

Lifespan

Perennial

Plant Type

Herb

Planting Time

Spring

Bloom Time

Summer, Fall

Harvest Time

Mid fall, Late fall, Early winter

Plant Height

2 m

Spread

75 cm

Leaf Color

Green

Orange

Flower Size

5 cm to 8 cm

Flower Color

Yellow

Stem Color

Green

Yellow

Leaf type

Deciduous

Ideal Temperature

15 - 35 ℃

Scientific Classification of Yacon

Phylum

Vascular plants

Class

Dicotyledons

Order

Asters bellflowers fanflowers and allies

Family

Daisy

Genus

Smallanthus

Species

Yacon

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Common Pests & Diseases About Yacon

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Common issues for Yacon based on 10 million real cases

Powdery Mildew

Powdery mildew is a white mold that appears on leaves. It can be wiped away.

Solutions: As powdery Mildew spores are transported by the wind, it can be tricky to put a complete stop to the spread of the fungus. Luckily, there are several easy treatments for plants that are exhibiting symptoms: If powdery Mildew seems to be impacting isolated leaves or stems, they can simply be trimmed away and disposed of. Disinfect pruning tools after doing this. Remove any plant debris from the ground around the infected plants and dispose of it in the garbage. Then, cover the soil with a thick layer of mulch to limit reinfection. Milk sprays have been found to be useful in controlling powdery Mildew. Make up a spray consisting of 60% water and 40% milk and spray on the affected plants. This can also be used as a preventative measure. In cases where powdery Mildew is more widespread, plants can be sprayed with a mild sulfur- or copper-based fungicide or a non-toxic solution made from baking soda and soap. Sprays can help areas that have been recently infected, though they are less effective against well-established infections. If possible, try transplanting the plants to a sunnier location. Though powdery Mildew does fine in hot, dry conditions, it is unable to reproduce without some humidity. Putting plants in more direct sunlight can help stop the spread of the fungus. Trimming around closely-packed plants can help improve airflow, which also prevents the reproduction of the fungus.

Sap-sucking insects

Sap-sucking insects can create dense clusters of small yellow or white spots on the leaves.

Solutions: Sap-sucking insects can be hard to spot, as they are often small and attach to the undersides of plant leaves. If you see signs of an infestation, follow these steps to eradicate it. Hand-pick bugs and remove eggs: Inspect your plants for insects and drop any you find in a container of soapy water. Look carefully at the undersides of plant leaves and squish any egg clusters you find. Use Insecticide: Targeted spraying can take out sap-sucking insects. Small infestations can be controlled with insecticidal soap, though larger outbreaks might require a stronger spray. Introduce natural predators: Many insects, including ladybugs and praying mantises, love to feast on sap-suckers. You can purchase them at garden stores and release them near infected plants, or encourage wild ones by creating habitat space.

Fruit withering

Fungal infection or normal ripening can cause the fruit to dry out.

Solutions: There are a number of appropriate solutions to control fruit withering: Remove any fruit as soon as it shows any signs of infection. Do not compost. Use a fungicide prior to leaf bud and then as per manufacturers instructions throughout the season.

Thrips

Thrips are 1 to 2 mm bugs with slender black or translucent-yellow bodies. They move quickly and feed on the plant's sap.

Solutions: Thrips can be controlled in several ways. Spray plants with Pyrethrin, which is an organic pesticide derived from marigolds (follow label instructions) or Permethrin, the synthetic version of Pyrethrin. Introduce beneficial insects to the garden that eat thrips, such as minute pirate bugs and green lacewings. Remove heavily infested plants from the area and discard. Address viral diseases that may have been transmitted by the pests. For less serious cases -use a hose to spray the thrips off of the plants.

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Distribution of Yacon

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Habitat of Yacon

Andean highlands

Northern Hemisphere

South Hemisphere

Distribution Map of Yacon

Yacon is indigenous to the Andean region of South America, where it thrives in the mountainous terrains. Since its domestication, yacon has been introduced to and is now cultivated in various parts of Central America and Asia. It has adapted to new regions beyond its native range, gaining popularity in locales with suitable growing conditions.

Native

Cultivated

Invasive

Potentially invasive

Exotic

No species reported

More Info on Yacon Growth and Care

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Basic Care Guide

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Lighting

Full sun

Yacon flourishes under ample sun exposure, deriving energy for crucial processes like photosynthesis. Its natural surroundings are atypical of places having copious solar radiation. A lack of sunlight could lead to sub-optimal growth, while an excess could potentially harm the plant.

Best Sunlight Practices

Transplant

2-3 feet

The optimal time to transplant yacon is during the later stages of spring to early summer (S4-S6). This time frame ensures healthy growth by reducing the risk of frost damage. The plant prefers sunny locations with well-drained soil. A friendly tip: transplanting should be done in the evening to prevent shock from the sun.

Transplant Techniques

Temperature

-10 - 41 ℃

Yacon originally thrives in environments with temperatures ranging from 59 to 95 °F (15 to 35 °C). It prefers these moderate conditions and can adjust to seasonal fluctuations within this range.

Temp for Healthy Growth

Feng shui direction

East

Yacon flourishes in Feng Shui applications, particularly in eastern-facing areas. Its broad, glossy leaves allow it to capture the rising sun's Yang energy, which can enhance prosperity and vitality in the home. However, each setting is unique, hence individual experiences may vary.

Fengshui Details

Plants Related to Yacon

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Shaggy dwarf morning-glory

Other names for shaggy dwarf morning-glory (Evolvulus nuttallianus) include silky evolvulus, silver wild morning glory, and shaggy evolvulus. It’s indigenous to the western and midwestern parts of the United States. Its bright blue flowers make a terrific addition to butterfly gardens, attracting cloudless sulfur butterflies and other species.

Indian hawthorn

Indian hawthorn is a perennial shrub that thrives in sunny locations. It requires less care than other shrubs because it is slow-growing and keeps its shape without pruning. Its pink or white blooms are fragrant and develop into purple-black fruit during the summer months.

Russian sage

Russian sage is an attractive species of sage with a strong scent. Certain cultures in Kashmir use the flowers to create textile dyes. A biopesticide has been developed from russian sage essential oil which protects against ants and certain beetles. The plant is also being investigated for its ability to draw heavy metals out of contaminated soil.

Field marigold

Field marigold (Calendula arvensis) is an annual herbaceous plant that can grow up to 51 cm tall. It blooms from spring to fall and can grow during the winter months in warmer climates. It produces a single flower head with yellow ray-like petals that surround an orange disc-shaped center. The field marigold thrives in full sun to partial shade and attracts bees, butterflies, and birds.

White mulberry

The white mulberry (Morus australis) is native to northern China but is naturalized in the USA. It is cultivated to feed the silkworms involved in the commercial production of silk. When it releases its pollen, the stamens act as catapults, and the pollen is ejected at 380 miles per hour, the fastest recorded movement in the plant world.

Autograph tree

Autograph tree (Clusia rosea) is indigenous to tropical regions of America. It has a nasty tendency to grow on top of and strangle other plants. Unlike most other plants, it can absorb carbon dioxide during nighttime hours, as pineapples and jade plants do. It’s called the autograph tree because its leaves are so hard, you can carve into them.

Cape jasmine

Gardenia jasminoides is an evergreen shrub with unique, glossy evergreen leaves and stunning flowers. The sophisticated, matte white flowers are often used in bouquets. The exceptional beauty of this ornamental plant has made it a popular and highly appreciated plant amongst gardeners and horticulturalists.

Golden pothos

The golden pothos (Epipremnum aureum) is a popular houseplant that is commonly seen in Australia, Asia, and the West Indies. It goes by many nicknames, including "devil's ivy", because it is so hard to kill and can even grow in low light conditions. Golden pothos has poisonous sap, so it should be kept away from pets and children.

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Yacon

Smallanthus sonchifolius

The yacon (*Smallanthus sonchifolius*) is a member of the sunflower family native to the Andes. Humans have eaten it for thousands of years, since before the Incas. The storage roots are usually eaten raw. It can also be stir-fried, stewed, and curried, and in Eastern countries, it is pickled.

Hardiness Zones

7 to 10

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Care Guide for Yacon

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Soil Care

Sand, Chalky, Acidic, Neutral, Alkaline

Mid fall, Late fall, Early winter

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Questions About Yacon

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Watering

Pruning

Sunlight

Temperature

Fertilizing

What is the best way to water my Yacon?

What should I do if I water my Yacon too much or too little?

How often should I water my Yacon?

How much water does my Yacon need?

How can I tell if i'm watering my Yacon enough?

How should I water my Yacon through the seasons?

What's the difference between watering Yacon indoors and outdoors?

Does my Yacon need to be pruned?

When is the best time to prune my Yacon?

What should I do after pruning my Yacon?

How can I prune my Yacon during different growth stages?

How can I prune my Yacon during different seasons?

What are other tips and tricks for pruning my Yacon?

Are there any instructions for pruning my Yacon?

Are there any other tips and tricks for pruning my Yacon?

How much sunlight does Yacon need to grow?

What type of sunlight does Yacon need?

Should I protect Yacon from sun exposure?

What will happen if Yacon doesn't get enough sunlight?

What will happen if Yacon gets too much sunlight?

Are there any cautions or tips for sunlight and Yacon?

What is the optimal temperature for Yacon?

How can I protect Yacon from extreme temperatures outdoors?

Does Yacon need different temperatures in different seasons?

What is the best way to maintain the right temperature for my Yacon?

Why do I need to fertilize my Yacon?

When is the best time to fertilize my Yacon?

When should I avoid fertilizing my Yacon?

What type of fertilizer does my Yacon need?

How do I fertilize my Yacon?

What happens if I fertilize my Yacon too much?

Get tips and tricks for your plants.

Keep your plants happy and healthy with our guide to watering, lighting, feeding and more.

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Key Facts About Yacon

Feedback

Attributes of Yacon

Lifespan

Perennial

Plant Type

Herb

Planting Time

Spring

Bloom Time

Summer, Fall

Harvest Time

Mid fall, Late fall, Early winter

Plant Height

2 m

Spread

75 cm

Leaf Color

Green

Orange

Flower Size

5 cm to 8 cm

Flower Color

Yellow

Stem Color

Green

Yellow

Leaf type

Deciduous

Ideal Temperature

15 - 35 ℃

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Scientific Classification of Yacon

Phylum

Vascular plants

Class

Dicotyledons

Order

Asters bellflowers fanflowers and allies

Family

Daisy

Genus

Smallanthus

Species

Yacon

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Common Pests & Diseases About Yacon

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Common issues for Yacon based on 10 million real cases

Powdery Mildew

Powdery mildew is a white mold that appears on leaves. It can be wiped away.

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Sap-sucking insects

Sap-sucking insects can create dense clusters of small yellow or white spots on the leaves.

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Fruit withering

Fungal infection or normal ripening can cause the fruit to dry out.

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Thrips

Thrips are 1 to 2 mm bugs with slender black or translucent-yellow bodies. They move quickly and feed on the plant's sap.

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Distribution of Yacon

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Habitat of Yacon

Andean highlands

Northern Hemisphere

South Hemisphere

Distribution Map of Yacon

Native

Cultivated

Invasive

Potentially invasive

Exotic

No species reported

More Info on Yacon Growth and Care

Basic Care Guide

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Plants Related to Yacon

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Indoor

Requirements

Full sun

Ideal

Above 6 hours sunlight

Watch how sunlight gracefully moves through your garden, and choose spots that provide the perfect balance of light and shade for your plants, ensuring their happiness.

Essentials

Preferred

Tolerable

Unsuitable

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Artificial lighting

Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
1. Choose the right type of artificial light: LED lights are a popular choice for indoor plant lighting because they can be customized to provide the specific wavelengths of light that your plants need.
Full sun plants need 30-50W/sq ft of artificial light, partial sun plants need 20-30W/sq ft, and full shade plants need 10-20W/sq ft.
2. Determine the appropriate distance: Place the light source 12-36 inches above the plant to mimic natural sunlight.
3. Determine the duration: Mimic the length of natural daylight hours for your plant species. most plants need 8-12 hours of light per day.

Important Symptoms

Symptoms of Insufficient Light in %s

Yacon thrives in full sunlight and is commonly cultivated outdoors. When grown indoors with limited light, it may exhibit subtle symptoms of light deficiency that can easily go unnoticed.

(Symptom details and solutions)

Small leaves

New leaves may grow smaller in size compared to the previous ones once they have matured.

Leggy or sparse growth

The spaces between leaves or stems of your Yacon may become longer, resulting in a thin and stretched-out appearance. This can make the plant look sparse and weak, and it may easily break or lean due to its own weight.

Faster leaf drop

When plants are exposed to low light conditions, they tend to shed older leaves early to conserve resources. Within a limited time, these resources can be utilized to grow new leaves until the plant's energy reserves are depleted.

Slower or no new growth

Yacon enters a survival mode when light conditions are poor, which leads to a halt in leaf production. As a result, the plant's growth becomes delayed or stops altogether.

Lighter-colored new leaves

Insufficient sunlight can cause leaves to develop irregular color patterns or appear pale. This indicates a lack of chlorophyll and essential nutrients.

Solutions

1. To ensure optimal growth, gradually move plants to a sunnier location each week, until they receive at least 6 hours of direct sunlight daily. Use a south-facing window and keep curtains open during the day for maximum sunlight exposure and nutrient accumulation.2. To provide additional light for your plant, consider using artificial light if it's large or not easily movable. Keep a desk or ceiling lamp on for at least 8 hours daily, or invest in professional plant grow lights for ample light.

Symptoms of Excessive light in %s

Yacon thrives in full sun exposure and can tolerate intense sunlight. With their remarkable resilience, symptoms of sunburn may not be easily visible, as they rarely suffer from it.

(Symptom details and solutions)

Chlorosis

Chlorosis is a condition where the plant's leaves lose their green color and turn yellow. This is due to the breakdown of chlorophyll from excessive sunlight, which negatively affects the plant's ability to photosynthesize.

Sunscald

Sunscald occurs when the plant's leaves or stems are damaged by intense sunlight exposure. It appears as pale, bleached, or necrotic areas on the plant tissue and can reduce the plant's overall health.

Leaf Curling

Leaf curling is a symptom where leaves curl or twist under extreme sunlight conditions. This is a defense mechanism used by the plant to reduce its surface area exposed to sunlight, minimizing water loss and damage.

Wilting

Wilting occurs when a plant loses turgor pressure and its leaves and stems begin to droop. Overexposure to sunlight can cause wilting by increasing the plant's water loss through transpiration, making it difficult for the plant to maintain adequate hydration.

Leaf Scorching

Leaf scorching is a symptom characterized by the appearance of brown, dry, and crispy edges or patches on leaves due to excessive sunlight. This can lead to a reduction in photosynthetic capacity and overall plant health.

Solutions

1. Move your plant to the optimal position where it can receive abundant sunlight but also have some shade. An east-facing window is an ideal choice as the morning sunlight is gentler. This way, your plant can enjoy ample sunlight while reducing the risk of sunburn.2. It is recommended to trim off any completely dehydrated or withered parts of the plant.

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Indoor

Requirements

Ideal

Tolerable

Unsuitable

Just like people, each plant has its own preferences. Learn about your plants' temperature needs and create a comforting environment for them to flourish. As you care for your plants, your bond with them will deepen. Trust your intuition as you learn about their temperature needs, celebrating the journey you share. Lovingly monitor the temperature around your plants and adjust their environment as needed. A thermometer can be your ally in this heartfelt endeavor. Be patient and gentle with yourself as you explore your plants' temperature needs. Cherish your successes, learn from challenges, and nurture your garden with love, creating a haven that reflects the warmth of your care.

Essentials

Yacon originally thrives in environments with temperatures ranging from 59 to 95 °F (15 to 35 °C). It prefers these moderate conditions and can adjust to seasonal fluctuations within this range.

Regional wintering strategies

Yacon prefers relatively warm temperatures, so maintaining temperatures above {Suitable_growth_temperature_min} during winter cultivation is beneficial for plant growth. The minimum temperature should be kept above freezing point to prevent the plant from freezing damage. When the outdoor temperature approaches -5°C (25°F) during winter, it is advisable to bring Yacon indoors or provide protection by setting up a temporary greenhouse or using materials such as plastic film or fabric to wrap the plant.

Important Symptoms

Symptoms of Low Temperature in Yacon

Yacon has moderate tolerance to low temperatures and thrives best when the temperature is between {Suitable_growth_temperature_min} and {Suitable_growth_temperature_max}. During winter, it should be kept above {Tolerable_growing_temperature_min}. When the temperature falls below {Limit_growth_temperature}, the leaves may darken in color. In severe cases, water-soaked necrosis, wilting, and drooping may occur, and the color of the leaves gradually turns brown.

Solutions

Trim away the frost-damaged parts. Immediately move indoors to a warm environment or set up a makeshift greenhouse for cold protection. When placing the plant indoors, choose a location near a south-facing window to ensure ample sunlight. If there is insufficient light, you can use supplemental lighting.

Symptoms of High Temperature in Yacon

During summer, Yacon should be kept below {Suitable_growth_temperature_max}. When the temperature exceeds {Tolerable_growing_temperature_max}, the plant's growth slows down, the color of its leaves becomes lighter, and it becomes more susceptible to sunburn.

Solutions

Trim away the sunburned and dried-up parts. Move the plant to a location that provides shade from the afternoon sun. Water the plant in the morning and evening to keep the soil moist.

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Care Guide for Yacon

Questions About Yacon

More Questions People Also Ask

Key Facts About Yacon

Attributes of Yacon

Scientific Classification of Yacon

Common Pests & Diseases About Yacon

Distribution of Yacon

Habitat of Yacon

Distribution Map of Yacon

More Info on Yacon Growth and Care

Plants Related to Yacon

Care Guide for Yacon

Questions About Yacon

More Questions People Also Ask

Key Facts About Yacon

Attributes of Yacon

Scientific Classification of Yacon

Common Pests & Diseases About Yacon

Distribution of Yacon

Habitat of Yacon

Distribution Map of Yacon

More Info on Yacon Growth and Care

Plants Related to Yacon