Blackberries are a tasty addition to any garden or landscape, and aren't hard to grow. You only need to plant a couple of blackberry vines in order to have loads of fresh berries. The vines can be pruned to grow on a trellis, or they can grow wild on the ground, creating a snaking bush.
Decide where you want to plant the blackberry vine, which can be obtained from local nurseries. Keep in mind that you need about a 4- to 5-foot space or larger if you are placing the vine on a trellis or fence. The location must be in the sun for around 3 hours each day.
Dig a hole 5 inches deep with a shovel. Set the blackberry vine in the hole. Mix the dug up dirt with compost and fill in the space around the plant. Pack the dirt in around the plant securely so the roots can take a strong hold, then water generously (about twice a day) for a couple of days.
Tie the vines onto the trellis if desired to keep them off the ground. If you don't, the vine will reroot all over the ground and turn into a spreading bush.
Water the blackberry vine according to the type it is. Hybrids don't need a lot of water, but consult the plant instructions from the nursery for specific water amounts for your variety of blackberry. Mulch with grass clippings to add nitrogen and keep the soil moist.
Place a net over the vine when the berries begin to grow to protect it from birds. Prune the blackberry vine yearly with pruning scissors every fall to encourage new growth the following spring. If random canes begin to grow from the ground, prune them off if you don't want them to produce fruit the second year.