I have found blackcurrant, Ribes nigrum, and its flowering cousin R sanguinium strike very easily when autumn pruinings are stuck into leaf mold. Really good strong roots develop and are easy to transplant. They are also probably the most productive/worthwhile plant imaginable, giving 15lbs of fruit per square yard of ground from mature plant with absolutely no effort at all. Zero trouble with frost/wind/pet damage and, while I do net some bushes to keep the birds off, there are so many 'wild' plants (from cuttings I have put in and from bird droppings) that wildlife isn't deprived. I'd suggest that it is THE starting point for soft fruit growing!