Show PRUNING raspberries RASP BERRIES in pruning raspberries rasp berries and blackberries in winter or early spring thi th proper amount of cutting back depends upon the species and variety the side branches of black rasp berries are usually headed back to about 18 inches in length however heading back the side branches of vigorous canes of the cumberland to four to eight buds may result in larger berries but approximately the same total yield as when more bluds buds are left blackberry laterals literals late rals cut back one half leaving seven to nine buds bud usually produce larger and less seedy fruits than when lightly pruned severe heading back of the lateral lat erali of black raspberries rasp msp berries and blackberries 1 th not always desirable income sea se a sons removing the end of the canes or 0 shoots of certain varieties varlet iea may ma y not leave enough buds unless the canes of red rep berries are very tall or the old banes have not been removed no spring Ii pruning will be required old canes should be b removed and it is usually best beit to cut tall canes back to four or five feet |