Blackberry plants are members of the rose family. This deciduous bramble grows best in areas with temperate climates, developing sprawling, thorny branches. Thornless varieties exist. Blackberry bushes live 15 to 20 years, so they are a long-term addition to a garden. Blackberries start to ripen in June, depending on the amount of rainfall and sunshine in the spring. Blackberries can be eaten fresh off the bush, made into jam, baked into pies and fixed as deserts.
Remove weeds and unwanted plants in a site with full sun, air circulation and soil that drains.
Loosen the soil with a shovel to the depth of 24 inches. Remove large rocks and break up dirt clods. Mix in a 2- to 4-inch layer of well-rotted manure, peat moss and compost to increase organic material content.
Dig a hole the same size as the root ball. Scrape the sides of the hole with the edge of the shovel to prevent soil compaction.
Cut the blackberry shoots so they are 6 inches long with sharp shears if not trimmed in the nursery. Examine the roots and trim away any damaged or dried out roots.
Spread the roots out in the hole and avoid bending them. Fill the hole halfway with soil and press firmly to remove any air pockets around the roots. Fill the hole with water.
Finish filling the hole with soil and gently tamp it down. Plant the other blackberry bushes three to five feet apart and in rows that are 2 to 4 feet apart.