The Q&A Archives: Calla Lilly Bloom

Question: I have a yellow calla lilly that bloomed the first year and failed to bloom the second. Any suggestions?

Answer: Callas need a rest in order to grow and bloom properly. There is a natural resting period that callas go through during the fall, when the leaves should wither and dry up. At that point, gradually slack off watering, and allow it to rest for 3-4 months. I presume your callas are in a container, not in the ground. After the 3-4 month resting period, repot in fresh, rich potting soil (make sure to place the rhizomes 4-6" deep), and resume feeding and watering. You can keep your calla indoors, but you'll need to stop watering in the fall so the leaves will wither and die. After it has rested, it should bloom again for you.

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