About Colutea arborescens L.
Colutea arborescens L. is a vigorous, rounded shrub that grows up to 3 metres (10 ft) tall, with many branches covered in deciduous foliage. Its pale green leaves are divided into multiple pairs of slightly hairy, oval-shaped leaflets, each reaching up to about 3 centimetres (1+1⁄4 in) long. The inflorescence is a raceme of generally pea-like yellow flowers that are around 3 cm long. The fruit is an inflated, bladdery pod that dries to a papery texture; this pod is 2 to 3 cm long and holds many seeds. In cultivation, this species can grow in poor, dry soil in exposed conditions, and it prefers full sun. It can be propagated by seed or softwood cuttings.
