Calla lilies multiply when they grow new buds on the rhizomes, which are underground stems from which the plants grow,' says Julie Bawden-Davis, plant expert at Healthy Houseplants. If you grow ...
Related: This Gothic Flower Is a Pop Culture Favorite for Fall Decorating Plant calla lilies in the spring after all danger of frost has passed or when the soil has warmed up to at least 65°F ...