Blackberry bushes provide the home gardener with the chance to grow fruit, even in smaller yards. Plant the bushes in rows or use them as a hedge border, to add an edible ornamental quality to the landscape. Many domestic blackberry cultivars are thornless, so there is no worry of children or pets becoming snagged in the bushes. Whether you plant an entire blackberry patch or use them to mark property lines, proper spacing is vital to prevent disease and to ensure the bushes thrive.
Space the bushes 4 feet apart the row in small areas or when using the blackberries as a border shrub. Space them up to 6 feet apart in the row for larger areas or if you are planting multiple rows.
Plant the rows 8 to 10 feet apart to allow easy access for harvesting as well as providing proper air circulation around the plants. Space rows as little as 3 feet apart in small yards or if you will only be handpicking the fruits.
Mulch the area between each row thoroughly to prevent weed growth. Apply at least 4 inches of organic mulch or lay down sheets of plastic mulch. Weeds take advantage of the fertilized soil between blackberries, but blackberries do not compete well with the weeds.