![]() Spread the fertilizer evenly over a 2-foot band. Increase the fertilizer rate the next year to 11.5 pounds per 100 feet of row applied in February and 5.5 pounds per 100 feet in June. Place the root cuttings 1–2 inches deep in well-prepared soil.įertilize the plants 1 month after planting with 10-10-10 or 13-13-13 and again in late June (using 5.5 pounds per 100 feet of row in a 2-foot band). Space the root cuttings or plants 2 feet apart within rows that are 10–12 feet apart to form a hedgerow. ![]() They should be 4–7 inches long and one-eighth to one-half-inch thick (about the size of a pencil). Note that it is illegal to propagate some cultivars that have plant patent protection. Root cuttings are collected from healthy plants during the dormant season. For commercial plantings, bare-root plants are the most common. ![]() Container-grown blackberry plants are more expensive, but these will also grow well. Raised beds are recommended for locations with poorly drained soils or in areas prone to flooding.Įstablish blackberries in late February or early March by planting plants or root cuttings. In general, their root systems do not tolerate wet soils. Blackberries can be grown on sandy soils if a good irrigation system is used. The most suitable soils are high in organic matter and have a pH of 6.0–6.5. Establishment and Cultural Practicesīlackberries can tolerate many soil types but grow best in full sun and well-drained soil. Although trailing types will grow here, the erect or upright blackberry is the most popular type grown in Mississippi because they require little or no trellising. ![]() For whatever reason blackberry plants have been far less forgiving than my raspberry plants.Home plantings of improved cultivars of blackberries offer high-quality fruit and ease of harvesting without the inconvenience of pests found in wild blackberries. The Sweetie Pie, Osage and Navaho blackberry plants produced some fruit last year but I'm starting to question whether they will produce any fruit this year because of the stress this past month and limited number of flowers. I have a half dozen raspberry plants in the same size containers, and they are doing great with the same care and have produced many berries the past two growing seasons. The foliage looks like it struggled coming back on the floricanes this spring with smaller leaves and sections of bare but greenish cane. The Navaho plant made it through the stressful conditions like a champ but only had two flowers. I kept up with watering and added more mulch which seems to have helped. The Sweetie Pie, Osage and Navaho plants have done well the first growing season but the Sweetie Pie and Osage plants which didn't do well after an unseasonable 90F heat wave and 3 week drought starting early June this year. They receive at least 6 hours of afternoon sun every day in zone 6 in the Midwest USA. Every spring I fertilize the plants which are covered with a few inches of pine mini nuggets mulch and watered regularly but not too much with several holes in bottom of containers. I have been growing blackberries in resin whiskey barrel planters with mixed results for three growing seasons now and could use some tips or recommendations.
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