Glen Magna is a late summer raspberry.Very large, deep red fruit with a delicious flavour.The fruit is ready for harvest in July and August, delicious to eat fresh but can also be frozen. Canes have few spines.The vigorous, upright canes show good disease resistance. As with all summer fruiting raspberries, the canes that have fruited should be cut back to ground level as soon as all the fruit has been picked. For the biggest crops, mulch around the plants each year with well-rotted manure and tie the canes onto horizontal support wires.