Prepare the ground well before planting. Remove all weeds and dig in plenty of well-rotted manure in to the area. Once planted, shorten the canes to about 23cm (9in). Each spring, mulch well with well-rotted manure. Plants flower on one-year-old wood, so the new canes need to be separated from fruiting ones. After cropping, cut the fruiting canes down to the ground and tie in the new ones that have grown that year.