Floaty Boat Pea Tree – Colutea arborescens is a deciduous nitrogen fixing shrub growing to 11ft. by 9ft. at a fast rate. It is hardy to zone 5. It is in flower from Jun to September, and the seeds ripen from Sep to October. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Bees. It is noted for attracting wildlife.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: acid, neutral and basic (alkaline) soils. Colutea arborescens can grow in semi-shade (light woodland) or no shade. It prefers dry or moist soil and can tolerate drought.