To plant blackberries, till the soil, prune the blackberry plants, dig planting holes, insert the blackberries, water them and fertilize the plants. This process takes several hours and requires blackberry bushes, a tiller, compost, a trowel, water, pruning shears and fertilizer.
- Till the soil
Clear the ground of rocks, sticks and other debris. Till the soil to a depth of 8 inches. Add a 2-inch layer of compost, and till the soil again.
- Prune the blackberries
Prune each blackberry cane back to a length of 6 to 8 inches. If you purchase pre-pruned blackberries from a nursery, skip this step.
- Dig planting holes
Dig one planting hole for each blackberry bush. Make the holes slightly wider than the root balls.
- Insert the blackberry bushes
Set the bushes in the holes, and then cover them with soil until each hole is three-fourths full. The juncture of the stems and root balls should be level with the adjacent ground.
- Water the bushes
Pour 1 to 2 gallons of water over the roots of each blackberry bush. Pack the rest of the soil into the holes, and water the bushes until the soil is saturated.
- Fertilize the blackberries
Fertilize the blackberries with a fertilizer labeled "balanced" or "10-10-10." Apply it according to the directions on the package.