Plant agapanthus bulbs in spring once the chance of frost has passed, and in colder climates protect the roots with mulch. Agapanthus bulbs will do best in well-drained soil and enjoy full sun. 2.

If you want it to rebloom, wait until late June or early July and relocate the plant to a sheltered outdoor spot that gets part sun. Water regularly, but don’t allow the planting mix to become ...