Answer: Amaryllis belladonna (Brunsvigia rosea) are long-lived perennials that tend to clump when left alone. Divide and transplant in late spring or early summer when the bulbs are dormant. If you transplant at any other time, they may not bloom for years! Dig the clumps and divide, then set the bulbs so the tops are even with ground level. Give the bulbs plenty of room by spacing 2-3 feet apart, and you won't have to dig and divide them for several years.
Q&A Library Searching Tips