Please help: Need Blackberry Vine Advice
I recently purchased three blackberry vines that I would like to put in the ground. But I don't know what is the recommended spacing for blackberry vines. I purchased three. Also, what kind of sun does a Blackberry vine need?
These look kind of generic and didn't come with additional info, but they're for zone 8a.
Also, how invasive are Blackberry vines? I've read a few threads here with complaints about them taking over. I was going to put up a 4-wire trellis for the blackberries to grow onto. Are there any precautions I should take to keep the vines under control?
And last question, these already have a few fruits on them, but they're about 31 to 32 inches tall. How much will these grow per year in height? And how much fruit should I expect?
Thanks everyone in advance for your advice.