Morning Glories Not Blooming - Knowledgebase Question

Elizabeth, PA
Avatar for npl3
Question by npl3
September 8, 1998
I plant morning glories (heavenly blue) almost every year. They are planted in the same place and I always have alot of flowers by now. But this year I have hardly any. I know they are not supposed to be planted in a rich soil. This soil is not. Can you tell me why this might have happened?

Answer from NGA
September 8, 1998
There are several possible reasons I can think of for why that might happen: if the spring and/or summer are cooler or cloudier than usual it can delay blooming, if there is a drought it can slow the plants down, and if the soil has become depleted over the years there may be insufficient nutrients for top performance. While morning glories will produce excess foliage if grown in overly rich (high nitrogen) soil, they do still need some nitrogen as well as the other nutrients found in a balanced fertilizer (such as 10-10-10) or provided by using good compost along with possibly an additional source of nitrogen.

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