Set the plants at the same depth as they were when growing in the nursery and firm the soil around the roots. This reduces the possibility of disease carry-over from the nursery. The tops of red raspberries should be cut to 6-8 inches. When planting, do not allow the crowns of the plant to project above the soil surface as the new canes which grow from such an elevated crown tend to break off. Planting Systems First year cane growth is usually prostrate, so support may be desirable to improve growth and early yields.
Subsequent growth is upright.
Purple and black raspberries should be spaced 3-4 feet apart. The final row width should be kept to 12-15 inches. The distance between rows will vary according to the cultivation or mowing equipment used, but it is usually 6-12 feet. Trellising or some system of support may be desirable where plants are vigorous. Support will permit taller plants which results in higher yields.