Blackberry lilies are generally trouble-free plants. Free-standing, this plant does not require support. Blackberries are native to North America and hardy to plant in USDA growing zones 5 through 8. Plants begin fruiting in mid summer, and the season lasts approximately 3 - 4 weeks. Blackberries are a bramble fruiting plant, with the berries being produced only on two-year-old canes. Before planting, separate the roots so they will spread out more easily, becoming more healthy and producing more fruit in the long run. Upright or erect plants can be closer than trailing varieties, which should be more like 6 or 7 feet (1.8 or 2.1 m) apart from one another. Planting Blackberries. Each cane lives for 2 years. Each year blackberry plants produce new canes from the crown just below the soil surface, and from roots that extend some distance out. The berries will have best flavor by allowing them to fully ripen. In mild climates Blackberry plants can be planted any time they are dormant from late autumn to early spring. If you do plant blackberry bushes from early spring to early autumn they will require watering initially in warm or dry weather. The canes are grouped together in rows which have the appearance of bushes. If your plant looks wilted or discolored, look for this hole. Most of our blackberries are summer bearing, which carry one crop of berries on the over-wintering canes during the summer months. If you’re blackberry plant is not producing new canes, see … Rubus fruticosus 'Navaho' is an erect, self-fruitful, thornless shrub with clusters of pinkish-white, rose-like flowers which give way to a heavy crop of large, blue-black, juicy-sweet blackberries over a harvest season lasting 30 days in mid-late summer. - In this video, Felix from Gurney's shows how to prune Blackberry plants in the Early Spring. The large, sweet berries are delicious and grow on a semi-erect, thornless blackberry plant. Before you start to plant them consider how large they may grow. Keep them well-fed, mulched, watered and trimmed, and keep an eye out for pests and diseases on them throughout the growing season. However, the common iris borer can infect and even kill plants. Of course the soil should not be frozen, so the temperature should be above 32˚ F. The first year a cane produces only leaves, the second year it bears fruit. They thrive along the eastern coast, as well as in the cool-night areas of the Appalachians, Ozarks, and Blue Ridge Mountains. In colder climates they are usually planted in spring. Blackberries are perennials, but on most plants the canes are biennials. If suckers are thrown up from the stool below soil level, pull them off or they will weaken the plant. Blackberry plants should be set into the ground about 6–8 inches (15.2–20.3 cm), and spaced between 3 and 6 feet apart from one another. I have five Triple Crown’s and they’re my favorite, both in taste and ease of care. Vigorous varieties will need 4m / 13ft of space from other plants, the least vigorous varieties will require 1.2m / 4ft. will keep you canning, preserving and feasting on the fresh fruits in mid- to late summer.These prolific, vining berry plants grow well without taking up a lot of gardening time. Take care that the growing tips of the canes don’t touch the ground or they will quickly take root. Growing a stand of blackberry bushes (Rubus spp.) Remove and destroy any infected plants. It won't fruit again, so old canes should be pruned out as soon as possible after the harvest to prevent disease from attacking the plant. Plant blackberry plants in a full to partial sunny area with well-draining soil. Plant Details Blackberries grow in areas of the South where summers are not too dry and winters not too harsh. The pest is insidious, and may leave no signs at first except an entry hole at the base of the plant. Plant multiple blackberry plants at least three feet apart with a wooden stake next to the plant, about 4-inches thick. The berries are firm and excellent for fresh eating, jams, jellies, and pies.