The plant does not bloom well in acidic soils, so adding lime in those conditions can improve flowering. Keep well-watered until established, after which time it is drought tolerant. Overwatering may cause the stems to flop over.

How long does it take for false indigo to bloom?

While False Indigo only takes about a year to reach its full height, plants started from seed do take three to four years to flower, however. After the spring late frost is the optimal time to transfer seedlings outside.

Should false indigo be deadheaded?

It is also called false or wild indigo. The plant is native to North America and with its deep blue blooms, provides a perfect enhancement in the native perennial garden. ... If you wish, you can deadhead to remove the old foliage and leggy plants can be trimmed lightly to force a flush of growth.