The foliage of False Indigo remains attractive all season until it dies back to the ground in the winter. The stems should be cut back to the ground in late fall, winter, or early spring before new shoots appear.
Foot-long, lupine-like spires of blue, pealike flowers are produced in mid to late spring, about a month after the leaves emerge. The individual flowers in these terminal racemes are about an inch long. The color ranges from pale to intense indigo blue, with white cultivars as well. Flowering lasts for just 2-3 weeks. The stems also make a good cut flower.
Foot-long, lupine-like spires of blue, pealike flowers are produced in mid to late spring, about a month after the leaves emerge. The individual flowers in these terminal racemes are about an inch long. The color ranges from pale to intense indigo blue, with white cultivars as well. Flowering lasts for just 2-3 weeks. The stems also make a good cut flower.