Raspberries are perfect for home gardeners, as these delicate fruits taste best straight from the bush.
By ROL Staff, Rodale's organic life
Raspberries are some of the most delicate (and delicious) of summer fruits. This makes them perfect for your home garden—you can give them all the tender handling they need and enjoy your raspberries at their best: plucked right off the plant.
(Whether you're starting your first garden or switching to organic, Rodale’s Basic Organic Gardening has all the answers and advice you need—get your copy today!)
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These small, soft, and tasty fruits come in several colors. Yellow and red are the hardiest and are very sweet. Black raspberries are delicious but also the least hardy and the most susceptible to disease. Purple raspberries fall somewhere in between red and black. Here's our guide for growing vibrant raspberries, courtesy of Rodale's Ultimate Encyclopedia of Organic Gardening.
Related: 5 Easy Jam, Jelly, And Preserves Recipes
Raspberries are some of the most delicate (and delicious) of summer fruits. This makes them perfect for your home garden—you can give them all the tender handling they need and enjoy your raspberries at their best: plucked right off the plant.
(Whether you're starting your first garden or switching to organic, Rodale’s Basic Organic Gardening has all the answers and advice you need—get your copy today!)
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These small, soft, and tasty fruits come in several colors. Yellow and red are the hardiest and are very sweet. Black raspberries are delicious but also the least hardy and the most susceptible to disease. Purple raspberries fall somewhere in between red and black. Here's our guide for growing vibrant raspberries, courtesy of Rodale's Ultimate Encyclopedia of Organic Gardening.
Related: 5 Easy Jam, Jelly, And Preserves Recipes
Choosing the variety you want to grow
[post_ads]Raspberries generally grow from zones 3 to 9, but you'll need to find a cultivar that's appropriate for your climate. In Northern areas, try extra-hardy raspberries such as Boyne, Nova, and Nordic. In the South, try heat-tolerant Dorman Red, Bababerry, and Southland. Raspberries ripen through much of summer and fall. Summer-bearing plants such as Boyne produce fruit on 2-year old canes. Ever-bearing plants such as Heritage and Redwing can produce both a summer crop on second-year canes and a fall crop on new canes. However, ever-bearers produce their best crops when only allowed to fruit in the fall. You can even select raspberry cultivars that ripen at different times if you'd like to spread out your harvest.
For example, you could plant early-ripening, red summer raspberries such as Algonquin and chilliwack, then black raspberries such as Bristol, then ever-bearers such as Autumn Bliss and Heritage. You can get the bareroot, in containers, or as tissue-cultured plantlets. Your best option is probably vigorous, year-old, bareroot plants that have been propogated from virus-indexed stock. You can check in at your local organic garden center about sourcing an option like this.
[post_ads]Raspberries generally grow from zones 3 to 9, but you'll need to find a cultivar that's appropriate for your climate. In Northern areas, try extra-hardy raspberries such as Boyne, Nova, and Nordic. In the South, try heat-tolerant Dorman Red, Bababerry, and Southland. Raspberries ripen through much of summer and fall. Summer-bearing plants such as Boyne produce fruit on 2-year old canes. Ever-bearing plants such as Heritage and Redwing can produce both a summer crop on second-year canes and a fall crop on new canes. However, ever-bearers produce their best crops when only allowed to fruit in the fall. You can even select raspberry cultivars that ripen at different times if you'd like to spread out your harvest.
For example, you could plant early-ripening, red summer raspberries such as Algonquin and chilliwack, then black raspberries such as Bristol, then ever-bearers such as Autumn Bliss and Heritage. You can get the bareroot, in containers, or as tissue-cultured plantlets. Your best option is probably vigorous, year-old, bareroot plants that have been propogated from virus-indexed stock. You can check in at your local organic garden center about sourcing an option like this.
Planting and caring for your berries
[post_ads]Plant red and yellow raspberries 2 feet apart in a row, and they'll fill in solid in a year or two. Space black and purple raspberries 3 feet apart. Keep the row width fairly narrow—6-24 inches wide—to allow every cane to get plenty of sun and be fully productive. Mow or till along the edge of the row as needed to keep the raspberries from creeping out. Apply compost and a little balanced organic fertilizer in late winter, if needed, for good growth. Mulch to discourage weeds and keep the soil evenly moist; water during dry spells. Propogate by division or layering, but only if you are sure your plants are healthy. In many cases, you're best off buying new, certified disease-free plants.
Related: How To Grow Hundreds Of Ground Cherries
Pruning the raspberry plants
Regular pruning will encourage your plants to produce high yields of top-quality berries. For a single fall crop on ever-bearers, simply cut off all the old canes at ground level when they are done fruiting. Summer-bearing red raspberries produce fruit on 2-year-old-canes. Cut down the old, grayish brown fruit-producing canes after you harvest, but leave the new, current-season canes to produce berries next year. In late winter, remove the smallest canes to leave three to six sturdy canes per foot of row.
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Black and purple raspberries produce fruit on side branches that grow off the older canes. During summer, cut off the fruit-producing canes after your harvest, and snip off the tips of new canes when they're 3 to 4 feet tall to make them branch. During the dormant season, remove the smallest canes to leave four to six sturdy canes per foot of row. On the remaining canes, cut out any spindly side branches and trim the remaining side branches back to 8 to 10 inches long.
Related: Your Guide To Growing The Most Delicious Blueberries
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Black and purple raspberries produce fruit on side branches that grow off the older canes. During summer, cut off the fruit-producing canes after your harvest, and snip off the tips of new canes when they're 3 to 4 feet tall to make them branch. During the dormant season, remove the smallest canes to leave four to six sturdy canes per foot of row. On the remaining canes, cut out any spindly side branches and trim the remaining side branches back to 8 to 10 inches long.
Related: Your Guide To Growing The Most Delicious Blueberries
Harvesting your berries
[post_ads]Pick your berries as early in the morning as possible, when they are cool. If the berries are wet, let them dry before picking. Handle them gently and place, don’t drop, them into a shallow container. Refrigerate immediately. It’s easier to pick berries with both hands free. Tie two long strips of sturdy cloth like apron ties to a large tin can or small bucket. Tie your picking can around your waist, or hang it around your neck. Put your berry basket in the bottom if you like. Carry an extra basket to put overripe or moldy berries in as you pick; removing these berries will help prevent rot problems from occurring later.
Related: How To Grow Strawberries In A Shopping Bag
How to prevent diseases and pests
Several fungi diseases may attack raspberries. Powdery mildew can cause a white coating on fruit, leaves and shoots. Anthracnose produces dark blotches on canes and possibly sideshoot dieback. Cane blight causes wilted shoot tips and dark spots on the canes. Proper pruning, as previously described, should prevent many of the problems. If these diseases were a problem the previous year, spray with lime-sulfur when the buds begin to turn green. Check catalogs for resistant cultivars.
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Viruses may produce stunted growth, curled, yellow-marked leaves, or crumbly, malformed berries. There is no cure; dig and destroy infected plants. Start a new patch in a different site with certified virus-free plants. Crown gall can cause lumpy swellings on the roots and the base of shoots. Dig up and destroy infected plants. Replant new stock in a different site. Avoid wounding stems. Bright orange spots on the undersides of leaves in spring indicates orange rust. This incurable disease attacks black and purple raspberries, as well as blackberries. Remove and destroy infected plants. Gray fuzz on the fruit indicates fruit rot. Pick and destroy infected berries. Gather ripe fruit daily.
Borers are insect pests that damage canes, causing wilted shoot tips. Look for a small entry hole near the base of the wilted area. Prune off damaged tips or canes, borer and all. If the shoot tip is wilted but you don't see an entry hole and if the inside of the cane is discolored, a disease may be the culprit; cut off the cane at the base and destroy it.
Several fungi diseases may attack raspberries. Powdery mildew can cause a white coating on fruit, leaves and shoots. Anthracnose produces dark blotches on canes and possibly sideshoot dieback. Cane blight causes wilted shoot tips and dark spots on the canes. Proper pruning, as previously described, should prevent many of the problems. If these diseases were a problem the previous year, spray with lime-sulfur when the buds begin to turn green. Check catalogs for resistant cultivars.
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Viruses may produce stunted growth, curled, yellow-marked leaves, or crumbly, malformed berries. There is no cure; dig and destroy infected plants. Start a new patch in a different site with certified virus-free plants. Crown gall can cause lumpy swellings on the roots and the base of shoots. Dig up and destroy infected plants. Replant new stock in a different site. Avoid wounding stems. Bright orange spots on the undersides of leaves in spring indicates orange rust. This incurable disease attacks black and purple raspberries, as well as blackberries. Remove and destroy infected plants. Gray fuzz on the fruit indicates fruit rot. Pick and destroy infected berries. Gather ripe fruit daily.
Borers are insect pests that damage canes, causing wilted shoot tips. Look for a small entry hole near the base of the wilted area. Prune off damaged tips or canes, borer and all. If the shoot tip is wilted but you don't see an entry hole and if the inside of the cane is discolored, a disease may be the culprit; cut off the cane at the base and destroy it.
