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How to Feed Blackberry Bushes

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blackberries image by Alison Bowden from Fotolia.com

Fill a bowl with fresh, tart blackberry fruit harvested from your own blackberry shrub. The fruit can be consumed fresh or added to your favorite pies. Blackberries are relatively hardy plants and can be grown in most backyards in USDA hardiness zones 7 through 9. The plants need occasional fertilization to ensure a large harvest and vigorous plant growth. With the right care, you can enjoy your blackberry shrub's bounty for many years.

Amend the soil before planting your blackberry bushes. Stir in 2 to 3 inches of compost into the top 6 inches of soil. This increases the dirt's fertility and concentration of organic matter, thereby helping the soil retain more moisture.

  • Fill a bowl with fresh, tart blackberry fruit harvested from your own blackberry shrub.
  • Amend the soil before planting your blackberry bushes.

Fertilize the blackberry bush once during the spring of its first year. This helps give the plant a boost as it enters the spring growing phase. Use a standard 10-10-10 (nitrogen-phosphorus-potassium) fertilizer. Sprinkle approximately 1/4 lb. of fertilizer around the blackberry bush in a circle with an 18-inch radius.

Feed the blackberry bush twice a year starting in its second year of growth. Apply fertilizer just as you did the first time, once in the winter and once in the summer after you have harvested the blackberry fruit.

  • Fertilize the blackberry bush once during the spring of its first year.
  • of fertilizer around the blackberry bush in a circle with an 18-inch radius.

Time To Transplant Blackberry Bushes

After blackberries are through fruiting for the year, the canes, which is the term used for the long branches that make up blackberry bushes, undergo some changes. The one-year-old canes, which will have fruit the next year, stop growing and enter a dormant period, usually in the late fall. Soil that has a lot of clay in it may hold too much water and cause root rot. Amending the soil with plenty of rich, organic matter both feeds the berries and helps add tilth to the soil, so your berries will thrive. Dig holes that are large enough to comfortably contain the root balls without crowding or folding the roots. Supporting the growing blackberry canes with a trellis or fence makes it easier for you to get into your berry patch, but make sure the support is strong, because blackberry bushes can get heavy.

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