The Q&A Archives: Kalanchoe: How To Elicit Blooms?

Question: I have two kalanchoes which I started as cuttings from a friend's plant. They grow well and have dark green, healthy foliage, but I have been unable to cause them to bloom. I have repotted them, fertilized them (Osmocote 18-6-12), and pinched them back all to no avail. In general, I allow the soil to dry completely between waterings.

Any suggestions for other ways I might encourage my plants to bloom?

Answer: Kalanchoe is considered a somewhat difficult plant to get to rebloom. Their normal bloom period is late winter-early spring, but it can be forced into bloom during any season by limiting the amount of daylight hours it receives. Put it in darkness for 14 hour nights for two months in a row. Fertilize with a product higher in phosphorous, such as Miracle-Gro at 15-30-15, to encourage flowers. They prefer full sun or bright light, average humidity and soil on the dry side. Good luck!

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