Jostaberry is a cross between a blackcurrant and gooseberries. It forms a very vigorous spineless shrub, growing 4-5' x 4-5' and is self fertile. The fruits are larger than a blackcurrant and are dark reddish black in colour. These are more like a gooseberry when slightly unripe, but similar to a sweetish blackcurrant when fully ripe in late July, early August. Jostaberry bushes begin to crop well after two years, and up to 4-5kg fruit per bush is possible.