Blackberry Plants

Fertilizer for Thornless Blackberry Bushes

Anonymous added on October 6, 2016 | Answered

What is the best fertilizer to use on thornless blackberry bushes? I planted several varieties of thornless blackberry bushes five years ago. The first two years I had tons of huge berries. The past two years they have not developed any blossoms. There isn't any sign of virus or disease. I have cut the canes way back every year and the bushes fill in beautifully. I have garden fabric around them with bark on top. The only other plants in the area are raspberries and blueberries.

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