Plant library · Berries & Small Fruits
Rubus occidentalis
Black raspberries are perennial, crown-forming shrubs that make a substantial fruiting row rather than a small filler planting. At about 5 feet tall and wide, they need a dedicated sunny position where their canes can be supported and reached from the side. Their late-spring bloom and early- to mid-summer harvest make them a useful seasonal anchor along the edge of a kitchen garden or orchard area.
Set black raspberries along a fence, trellis, or purpose-built wire support, with the support running parallel to a path or open work strip. This keeps the canes from leaning into circulation space and makes pruning and picking easier. Give the planting its own row instead of threading it through a mixed border. Garlic, chives, and borage can be placed nearby; keep potatoes, tomatoes, fennel, and blackberries out of the same planting area.
Plant on 4-foot centers, measuring from the crown of one plant to the next. Each plant can reach roughly 5 feet across at maturity, so this spacing creates an interconnected row rather than isolated shrubs. Reserve clear access along at least one side for tying canes to the trellis, removing spent growth, and reaching fruit without stepping into the planting.
Use a full-sun site and keep moisture regular through the growing season. Place the row where watering can be applied evenly to every crown, rather than at the dry edge of a larger bed. A simple, straight planting line makes it easier to water, support, and maintain the canes as one unit.
The root system and crown persist, while fruiting canes follow a shorter cycle. Black raspberries make new canes from the crown, and long first-year canes are tipped in summer to encourage branching. After the summer crop, remove canes that have fruited so the next set of canes has room on the support. Keep this annual work zone accessible from the path side of the row.[1][2][3]
Avoid low spots and other poorly drained ground. Do not place a new row where tomatoes or potatoes were recently grown, and leave generous room between fruit rows for air movement and maintenance. These plants are best treated as a long-term, separately managed feature rather than a temporary opening between annual crops.[2][3]
Editorial content updated 2026-07-20.