This is the main problem on raspberries. Dry patches develop at the stalk-end in midsummer, and often you will find a small white maggot inside the fruit. You can pick off the infected fruit, but this will not stop the spread. Grow autumn fruiting plants which are less affected.
Cane blight is a serious fungal disease in raspberries. During summer, leaves on fruiting canes wither and the bases of the canes turn dark brown, and the bark may split. The wood becomes very brittle so that the canes snap off easily at the base. Weak and plants under stress are more susceptible to cane blight, so make sure raspberries are well watered and mulch with well-rotted manure around the base to prevent drying out.
When planting, make sure canes are well-spaced so that they have good air circulation. Where the disease develops, cut out and dispose of any affected canes. Cut back to below soil level and disinfect the secateurs between cuts.
This is a fungal disease causing purple patches on canes. It rarely kills raspberries, but can reduce yield severely by weakening the canes and killing buds.
Avoid overcrowding by thinning out any young canes that are not required. This should be done as early in the spring as possible. If spur blight develops, cut out and dispose of badly affected canes.
Harvest regularly, to get fruits at the peak of ripeness, when richly coloured, plump and easy to pull off. Eat them fresh, freeze them or make into preserves. Buy now. Take action Why take action? Support us Donate Careers Commercial opportunities Leave a legacy. Join the RHS today and support our charitable work Join now. Hot links Browse inspiration articles Buy plants online.
Growing Raspberries! Overview Jump To Table of Contents. Dig a narrow trench down the center of a 2 foot row, with the roots trailing along the trench. Plants should be spaced " apart. Rows should be 8'' apart. After weeks, new canes will grow up from the roots. Build raised beds if your soil is slow to drain after a rain, or if you have heavier soil or clay soil.
Do not fertilize too close to your planting date. Trellising is advised for all bramble crops! Access to water is important. Plants will need irrigation at planting and throughout the growing season. Occasionally test your pH and make amendments to keep the soil pH between 6.
Do not fertilize in the fall. In the following winter, tip prune the canes now two-year-old floricanes and these will fruit in summer. Once the harvest is finished, prune the floricanes to ground level — do not prune the primocanes. Loosely tie the primocanes into bundles and secure to the trellis. Autumn fruiting varieties: Once fruiting finishes, simply cut canes back to ground level.
Blackberries Rubus canadensis are amazing to eat fresh from the bush or made into jams or pies. Learn the basics of growing your very own strawberries and raspberries. What do you get when you cross a raspberry and a blackberry? The best of a both worlds - a loganberry! Blueberries are ideal fruiting plants for the home garden with their prune-able size habit, they are small enough to fit into any garden. Seed Finder. Garden eMagazines.
Be Water Smart. Garden Calendar. Problem Solver. Yates Shop. On established plantings, apply the same rate for continued plant nutrition. Weeding Keep the area around the base of raspberry plants free of weeds to prevent them having to compete for water and nutrients. Remove weeds early and often.
A layer of mulch will help control weeds. Pruning Raspberries grow vigorously and need annual pruning. Summer-bearing red and yellow raspberries After the last harvest, cut all canes that have produced fruit to ground level and remove them. Thin primocanes to 4 to 5 sturdy canes per foot of row.
In areas where winter injury is common, you may delay thinning the primocanes until the following spring, when you will be able to tell which canes have survived. Primocane growth may be somewhat reduced under this delayed-thinning method, due to competition among new canes. Before growth starts in spring, cut the canes to about 12 inches above the support. Fall-bearing raspberries If only a fall crop is desired, cut all canes off at the base before growth begins in spring.
Black and purple raspberries When primocanes are between 24 to 30 inches in height, pinch out the tip of each shoot to induce branching. This will make the fruit easier to pick and increase production. After harvest, cut down all canes that bore fruit to ground level. Before growth begins the following spring, cut back all side branches so they are 12 to 18 inches long.
Select 4 to 5 canes per hill, and prune out the rest. Tie these canes to the support system. Harvest and storage. Managing pests and diseases Keeping plants healthy and well-cared-for is the best strategy for preventing a host of issues. Find help identifying common pest problems: Use the online diagnostic tools What insect is this? Ask a Master Gardener allows you to share pictures and get advice.
Wildlife Rabbits are partial to raspberry canes in winter and will eat them, thorns and all, right down to the ground or the snow line. Diseases and other challenges. Pest management schedule for raspberries For new raspberry patches What to do When to do it Locate site where the raspberries will be planted.
Kill old raspberries or wild raspberries near the proposed site. Take soil for pH and nutrient testing. Kill all perennial weeds, especially quack grass and thistle. Summer or fall before planting Order or buy plants from an established nursery that sells plants that have been certified virus-free.
Winter Plant raspberries. Spring Control annual weeds with hoeing or mulching. Choose row width and plant grass between rows. What to do When to do it Mow canes for fall bearing raspberries. Mow summer-bearing raspberries producing in alternate years. Do not mow summer-bearing canes if a crop is desired that summer. Early spring If spur blight, cane blight, or anthracnose have been a serious problem in the previous year, apply copper to dormant canes.
Scout dormant or recently sprouted canes for cane borers. Prune and remove any infested canes. May Prune dead canes on summer-bearing plants after leaves have sprouted.
Cut the tops of canes that died from either winter injury or cane borer. Cut below the gall on canes with cane borer. If spur blight, cane blight or anthracnose have been a serious problem in the previous year and weather conditions are consistently wet, apply fungicides to protect young primocanes. Mid May to early June Place traps for spotted wing Drosophila and check the traps regularly throughout the growing season.
Check leaves regularly for Japanese beetle. Remove Japanese beetles as they land on raspberry leaves when it is practical. Mid June to August Check leaves for raspberry sawfly. Remove green larvae when they appear. If spotted wing Drosophila is present, harvest ripe berries, properly dispose of infested fruit and apply insecticides. Late June through September Remove dying floricanes to improve air movement through the bed and reduce spread of fungal cane blights.
Late July 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 by walking rows.
Properly dispose of any overripe or rotting berries. August Scout for spur blight on mature primocanes. Remove any canes showing symptoms of disease. Share this page:. Page survey. Large clusters of bright red, mildly sweet berries.
Very large, firm, flavorful berries. Sturdy, vigorous, nearly thornless upright plants produce a late season crop of large, sweet, firm berries. Nearly thornless, productive plants. So productive it will weigh down the upright canes.
Vigorous plants produce lots of large, sweet, firm, bright red berries.
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