I have 18 vines (six each, Vidal Blanc, Vignoles, Foch) and nearly all of them have growth outside of the grow tube, several have reached the lower wire (42") and a couple Vignoles are almost to the top wire (60").
At what point can I/should I remove the tubes? I know it is early, but several of the shorter plants have 3-5 trunks growing, and Im not sure if I should prune a couple off, so that they can put the energy into one or two trunks.
At what point can I/should I remove the tubes? I know it is early, but several of the shorter plants have 3-5 trunks growing, and Im not sure if I should prune a couple off, so that they can put the energy into one or two trunks.