I have a boysenberry plant and a black-raspberry plant that are growing vigorously on a trellis. However, there are a couple of shoots (about a meter long now) that are growing away from the trellis and there isn't enough space on it for me to wait till they're long and bend it back there. Should I just prune these shoots so that they don't suck nutrients from the rest of the plant or, like trees, will summer pruning be detrimental to their growth?
I live in socal where it's just early summer right now. The plants haven't flowered yet (this is also their first year, so I don't know if they're on a grow one year, bloom next year cycle)