Cultivar
'Kabul'
This rare deciduous shrub grows to 1.5 m (5 ft) tall by 1 m (3 ft) wide with a slender arching branched stems that form a rounded habit. It has finally divided dark green leaves and the small tube-shaped lilac flowers appear in dense clusters from mid to late spring. It prefers an open sunny position and grows in most well-drained organic rich moist soils that are tending alkaline.