So I purchased a few "Prime Ark Freedom" blackberries. They are a primocane fruiting variety BUT they fruit twice (once early on then once in the fall if temps/weather is right)
Right now I have about 4-5 plants in a corner (they are going a bit crazy but are still fruiting) but are VERY tall. Most of them seem to have 3 canes that go very high up and then droop over. I honestly have never pruned plants much in general but these seem like they need it.
I've heard it's a good idea to "top" them at maybe 4 feet? Does it matter where I cut?
Also when do I prune the cane back down to the ground? During winter I guess? Is there any point in letting the cane stay around another year.
Some of the canes look sorta dead but halfway up the cane (starting from the top back) I guess I should just cut these off to the ground I assume?)
Thanks! (Also do I need to worry about staking or tying these off? if they were trimmed down to 4 foot or so they would stand up on their own)
edit: Apologies, apparently these plants ALSO fruit on the floricanes too.