How to Grow Heritage Raspberries in Pots

Fill a large 12-inch deep planter with a soil mixture high in organic content. Use a combination of equal parts of dampened peat moss, humus, vermiculite and potting soil. Mix it together in a wheelbarrow with a hand spade and add half to the planter.

Remove the raspberry plant from their container. Loosen the soil around the roots, unwinding them if they are coiled at the bottom of the pot.

Set the raspberry plants in the planter, keeping them 6 inches apart if planting more than one. Hold them straight with one hand and add the soil around the roots with your other hand. Keep the raspberry plant at the same depth as it was previously.

Water the Heritage raspberries until you see water pouring from the bottom of the container. Place the planter in a spot where it will get at least 6 hours of full sunlight per day.

Prune the canes back to 6 inches, just after a leaf bud, using a pair of sharp pruning shears. New canes will start growing from the base of the plant after a few weeks. Let these grow for fruit later in the summer. After fruiting, cut them off at the ground level. Leave any canes that did not bear fruit.

Protect the perennial roots of the Heritage raspberry plant by partially burying the planter with mulch over the winter to keep freezing temperatures from harming the plants.

Tie up the canes in the summer to keep them off the ground and to give the berries good air circulation. Pruning the tips will produce more lateral branches for bearing fruit.