When plants are cheap and plentiful it is customary to use two in each hill to insure a good stand the first year, but it is reasonable to expect, however, where there are two root systems in each hill instead of one that in after years there would be more troublesome suckers to remove than if there was but one root in each hill, and this is no small matter with some varieties.
To obtain planting stock large clusters of roots may be divided to propagate from, but these usually have but few fibrous roots and are not as good as first year’s growth suckers, springing from roots near the parent plant. Red raspberries may also be propagated from root cuttings or even from seeds, the latter not coming true to variety, however.
Plantings should preferably be made on ground plowed the fall previous, but spring plowed ground will answer if thoroughly disced, harrowed and planked and then repeated, to make the ground firm.
If the ground is poor add a liberal dressing of well decayed barnyard dressing before plowing, or if not well decayed wait until after planting to apply the manure. Future cultivations will mix the dressing with the surface soil where the roots will be able to reach it, since raspberry plants are close surface feeders, and for this reason all cultivations should be shallow after the root system has formed.
When the matted row system of planting is adopted, the late Prof. Green advised using a heavy mulch for two feet on each side of the rows to preserve moisture and discourage weed growth close to the plants, cultivating only a strip through the middle.
Raspberries may be planted in rows five or six feet apart to allow cultivation both ways, or in rows seven feet apart with plants two or three feet apart in the rows with the idea of allowing a matted row and cultivating but one way after the first season.
The matted row is hardly to be recommended unless one is willing to use a hoe rather freely to keep the plants free from weeds where the cultivator can not reach them, or unless he can provide a good, deep mulch to discourage weed growth.
Rows should preferably run north and south, so the fruit will be shaded during the middle of the day, but this is not absolutely necessary.
In setting the plants place them just a little deeper than they grew originally, carry them to the field in pails of water or thin mud, avoiding exposure of the roots to the air unprotected, but do not use water in the holes unless the ground is extremely dry. Firm the ground well close to the plant, and cultivate between rows all summer to preserve moisture, whether weeds are troublesome or not, up to September 1st and be sure to cultivate shallow after the roots begin to occupy the ground.
Hills that grow exceedingly tall and rank may be cut back to about two and a half feet in height in the spring, or if one is willing to take the trouble to pinch off the end of the plants at this height during the growing season they will get bushy plants better able to hold up a load of fruit—besides cutting back has a tendency to produce larger fruit.