Soil and Situation. Raspberries succeed in most soils except those of a very light, dry nature. They appreciate moisture while in growth. Soil must be dug deeply and should be dressed with well-rotted manure at the rate of 1 cwt. to 12 sq. yd., and sulphate of potash at 1 oz. per square yard. Lime is no essential.
Planting. This may be done at any time from mid-October until the end of March. Autumn planting is best, but spring planting gives excellent results in some seasons. Canes should not be allowed to fruit the first year. They are spaced 18 in. apart in rows 6 ft. apart. The uppermost roots should be covered with about 1 in. of soil.
Training. Wires strained between posts, or a fence or trellis, must be provided to support the canes. The uppermost wire should be 5-5 ½ ft. from ground level. Each plant is allowed to form five or six canes and these are spread out fanwise on the support.
Pruning. After planting, cut all canes back to within 9 in. of ground level. In subsequent years summertfruiting varieties are pruned as soon as the crop has been gathered. All canes that have borne fruit are cut out to ground level; strong young canes are trained in their places. Very long young canes are tipped in February, when they should be cut back to within about 6 ½ ft. of ground level. Autumn fruiting varieties are pruned in February. All old canes are cut to within 6 in. of ground level. Perpetual fruiting raspberries, such as Lloyd George, are pruned in both ways. Summer-fruiting canes are removed immediately after fruiting and autumn-fruiting canes cut back the following February.
NEW CANES, or suckers, are produced direct from the roots. Usually there are far more than are required. Retain five or six of the strongest nearest to the parent root. Canes appearing far from these should be cut out early in the summer or they become a nuisance. A few may be retained for propagation if necessary.
Routine Cultivation. Raspberry plantations become very weedy unless regularly hoed. Take care not to disturb the soil deeply, as most roots are near the surface. Forking and digging should not be attempted. Each May spread a mulch of well-rotted manure over the roots; each March give sulphate of potash at 1 oz. and sulphate of ammonia at oz. per square yard.
Routine Pest Control. When raspberry beetle is troublesome, dust or spray with derris in June when the flowers begin to fall and repeat when the first fruits turn pink. Keep a sharp watch for mozaic and remove any plants showing signs of this disease.
Propagation. Effected by digging up young canes
(suckers) in October or early November. Canes at some distance from the parent plants are most suitable, as they can be dug up with roots without injury to these plants. Replant at once in the ordinary manner.
Varieties of Raspberry. Lloyd George, June—Oct.; Mailing Enterprise, June—July; Malling Exploit, June—July; Mailing Jewel, July; Malling Landmark, July; Mailing Promise, June—July; Norfolk Giant, July; September, Sept.— Oct.