The Q&A Archives: calla lilys

Question: We have calla lilys in our front yard they are nice and green, but they just won't flower, please tell me why?

Answer: Callas thrive on heavy watering, require well-draining soil, and need filtered afternoon shade in your climate. If your soil is clay, you may need to dig the plants, amend the soil, then replant. After digging the callas, spread a 3"-4" thick layer of aged compost over the top of the bed and dig it in to a depth of 6"-8". Then replant the rhizomes, setting them about 4" deep and 1' apart. Don't fertilize (too much nitrogen can cause weak flower stems), but do water them well when new growth begins in the spring.

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