Blackberry Plants
Q.

no blossoms on my blackbereries

Zone Murrieta, CA., 92562 | Anonymous added on April 15, 2018 | Answered

I have three thornless blackberry bushes and there are no blossoms at all on any one of them. The foliage looks good, however and I have followed all of the suggestions for blackberry care, such as pruning, trellising and fertilizer. Jaykay

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on April 16, 2018

If you are pruning properly, the lack of blossoms could be an issue with fertilizer or with the age of the plants. It's possible that your soil already has sufficient nitrogen, and that added nitrogen is suppressing flowering. You could try adding a phosphorus fertilizer that doesn't include nitrogen.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm

Here are some general reasons a plant may not flower:
https://www.gardeningknowhow.com/plant-problems/environmental/plant-not-blooming.htm
https://www.gardeningknowhow.com/edible/fruits/blackberries/blackberries-not-fruiting.htm

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