Any time during the growing season, although plants will get.
Baptisia can simply be trimmed to take off the old flowers and seedpods or you can take it nearly to the ground. For rejuvenation false indigo pruning, cut the plant to within 6 inches (15 cm.) of the ground in late winter to early spring. The plant will quickly grow to surpass its former stumpdelimbing.barted Reading Time: 3 mins. For rejuvenation false indigo pruning, cut the plant to within 6 inches (15 cm.) of the ground in late winter to early spring. The plant will quickly grow to surpass its former height.
One of the best things about Baptisia is that you really don’t even have to meddle with pruning it. If you live in a warmer climate, cutting back indigo can be a little less drastic.
Just shorten the plant by up to half its height to maintain desired size and shape. Pruning will also prevent the plant, which can reach heights and widths of 3 to 4 feet (1 m.), from becoming too stumpdelimbing.barted Reading Time: 2 mins.
Care Baptisia prefers open, porous, well-drained, even sandy, soil. To keep it in a more mounded form after flowering, you can shear or prune Baptisia into a low rounded form. It tends to get big and floppy during flowering. It will self-seed. Propagation Sow seed in containers in a cold frame as soon as ripe. Divide in early stumpdelimbing.barted Reading Time: 1 min.
Although in most areas it dies back to the ground in winter, False Indigo leaves turn an unattractive black with the first hard frost and the plants tend to collapse by mid-winter, so cutting them back in fall is usually stumpdelimbing.barted Reading Time: 5 mins. Baptisias, also known as false or wild indigos (Baptisia spp.), are a group of large, long-lived perennials.
They provide an extended season of interest from flowers and foliage. The botanical name Baptisia originates from the Greek word bapto, to dip or to dye. Blue false indigo (Baptisia australis) and yellow wild indigo (Baptisia tinctoria) were used to produce a blue dye by both Native Americans and settlers before the introduction of the better quality true indigo.