Hello! I need advice in transplanting my blackcurrant bush to a colder environment. I am currently growing the bush in a container in the Vancouver area, but would like to transplant it into a garden in Northern BC (plant hardiness zone 3a). My question is two-fold: 1- what time of year should I do the transplant, late summer, Autumn or spring? (And if I should wait until spring, should I keep it in a shed over the winter without pruning?) 2- should I prune the bush down to a few inches after transplanting it? Thank you very much for any advice!