Sep 06, Adding a generous layer of mulch will help to prevent weed growth and keep the plants hydrated.
Some gardeners also recommend adding lime in the fall. Prepare for Next Year's Raspberries.
Fertilize, support and water. Fertilize your raspberry plants in Estimated Reading Time: 3 mins. If necessary, water raspberries 1 - 2 deep waters per week during the flowering and fruiting season, this is the most critical period of water requirements for the best raspberry plant care. Raspberry plants which suffer from drought conditions will produce smaller fruit.
Sun / Light Requirements for Raspberry Plants. Jul 27, Fall-bearing types produce on first year’s canes and are thus pruned back after the late fall harvest when dormant. How Do You Prune Raspberry Bushes? Again, pruning techniques depend on variety. Red raspberries produce suckers at the base of previous season’s growth while black (and purple) form on new growth. Red Raspberry Bush Pruning.
Summer-bearing – Remove all weak canes to the ground in early spring. Leave 10 to 12 of the healthiest canes. If gray mold has been a problem in past years, and weather is favorable for disease development, spray fungicides on fall-bearing raspberries during bloom. Remove berries with gray mold to prevent the disease from spreading to ripening berries. Monitor for fruit-eating beetles in fall-bearing raspberries. Oct 10, Prune summer-bearing raspberry bushes selectively in the fall after the final harvest.
Cut down canes that produced fruits that year. Once a cane produces fruits, it dies back anyway. Take out canes that are brown and woody. Take out canes that grow sideways, and cut broken canes.