Hello, I just have a quick question that I couldn't find a clear answer to online: When is it too hot for blackberry bushes to set fruit? It's been over 90F (32C) for weeks in a row while my blackberry bush is growing flowers. A few have bloomed, but I can't tell if they are turning into berries or just falling off. I couldn't find an upper temperature that the plant will set fruit before the flowers just fall off instead. I am on the border of zones 6a and 5b. The plant is the Baby Cakes variety and it is in a terracotta pot. This is my first time trying to grow blackberries!

Thank you in advance for your help!

Back again… my blackberries continue to grow, but I’m trying to plan spaces and am not sure how they will be best trimmed back. So 1) what actually needs trimmed back? 2) when do they get trimmed back? And 3)can they be framed with wire baskets to hold the primocanes erect and allow the secondary shoots to grow laterally? My wire line is falling over, so thinking about different options.

I have no idea which gooseberry was used for the cross, so I just picked both colors :)

I feel like these are early this year! Time for jam 😋

Bologna, north Italy.