Gardenia Blossoms Dying - Knowledgebase Question

St. Paul, Mn
Question by ooolllivia99
July 26, 2005
I live in zone 4 and have a gardenia potted in a clay pot with good drainage. The blossoms prematurely fall off. It has been very warm and sunny, can you help?

Answer from NGA
July 26, 2005


Gardenias are finicky about growing conditions. They need at least a half day of full sun to bloom, but at the same time, the hot afternoon sun can be tough on them. Morning sun is best, so an eastern location would be ideal. You might also try a southern or western exposure with some filtered shade. Buds that turn black or drop and bottom leaves that are yellowed are sure signs that gardenias aren't getting enough light. Leaf drop can also be caused by improper soil pH (gardenia require 5 to 5.5pH - on the acid side.) Yellowing and leaf drop are also signs of various soil nutrient deficiencies such as nitrogen, zinc, and iron. Finally, if the air is too dry, your plant will drop buds and leaves. Try sprinkling the plant every morning to increase humidity (and also discourage spider mites!). Hope these suggestions help!

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