Q.Hibiscus rosa sinensis
I have a hibiscus (rosa sinensis) that refuses to flower. . . . not even a bud. I water it and fertilize it faithfully but it is becoming an exercise in futility. There is no evidence of insect infestation whatsoever. Please help before I discard the plant.
Nikki
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on July 12, 2012
It sounds like the plant has too much nitrogen. Balance it with phosphorus, which helps with blooming. Use a "bloom booster" fertilizer or add some bone meal to the soil to help add some phosphorus.
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