Red Raspberry

Sowing: Seed can be sown in early autumn into a cold frame, with stored seed stratified for one month at 3°C before germination; once large enough to handle, seedlings are potted individually and grown on in a cold frame before being moved to their permanent site the following late spring. Hardwood cuttings offer a faster route to new plants, rooting for about a year in a slow-release-fertilized medium set out of full sun and sheltered from drying wind, while suckers and canes are also commonly used for propagation.

Siting: Plants want full sun in well-drained loamy soil that tolerates a wide pH range but needs consistent moisture, and should not follow eggplants, potatoes, tomatoes, or strawberries in the same ground. Canes are planted in early spring, spaced at least three feet apart, set into a hole deep enough for the roots, then cut back to 8-10 inches after planting; a trellis added at planting time helps support the arching canes.

Care: Established plants need about an inch of water weekly and benefit from mulch to hold moisture and suppress weeds, while flowers should be removed in the first summer to channel energy into growth. Because canes grow to full height in their first year and fruit in their second before dying, spent fruiting canes are pruned out each dormant season and any canes growing sideways are cut away, keeping a modest number of new canes per plant.

Raspberries should not be planted where eggplants, potatoes, tomatoes, or strawberries have previously grown, since root diseases carried over from those crops can persist in the soil.

Fruit ripens between July and September and should be picked every three to four days once dry and easily plucked, separating cleanly from the fleshy core to leave behind a hollow shell.

Culinary: The fruit is eaten fresh or used in jams, jellies, pies, baked goods, candies, dairy products, juices, soft drinks, wines, and liqueurs, while dried leaves are brewed into an herbal tea sometimes used as a coffee substitute.

Medicinal, traditional: A tea made from the leaves has been used by some Native American communities, including the Chippewa and Omaha, to treat diarrhea and to ease childbirth and menstrual cramping, while leaves and roots have served externally as a gargle for tonsillitis, mouth sores, and burns. In 17th-century Europe the juice was made into a syrup regarded as an antispasmodic and used to prevent vomiting, and by the 18th century physicians and herbalists considered the berries a remedy for heart disease.

Other: The fruit yields a purple to dull blue dye, and thickets of the plant provide food and cover for grouse, birds, raccoons, coyotes, squirrels, skunks, chipmunks, and nesting songbirds.

Rubus idaeus grows natively across North America and from northern Europe to northwestern Asia, occurring as two recognized forms: the European raspberry (var. idaeus), native to Eurasia, and the American red raspberry (var. strigosus), native to North America. This wild species is described as the parent of all cultivated raspberries, from which the many modern fruiting varieties descend.