Fertilizing Blackberries


With minimal effort, many gardeners succeed in growing beautiful blackberry patches in a home garden. Because blackberries are perennial plants, once you establish a blackberry stand, it should flourish for years and produce many harvests of blackberries. Choose a sunny location to plant blackberry canes and amend the soil so it is rich and drains well for best results. Fertilize blackberries at the beginning of each growing season to ensure energetic growth and abundant berry production.

Step 1

Prepare the growing area for the fertilizer in early spring when the blackberry plants break dormancy. Dig a 3-inch-deep trench approximately 1 foot away from each row of blackberry canes with the hoe.

Step 2

Sprinkle the fertilizer along the prepared trench, applying approximately 5 pounds of fertilizer for each 100 feet of blackberry canes.

Step 3

Cover the trench lightly with soil. Water the soil generously immediately to help the fertilizer soak into the soil.

Step 4

Watch the blackberry plants as the growing season begins. If you notice yellow foliage and stunted growth, apply approximately 1.5 pounds of ammonium nitrate for every 100 feet of blackberry canes along the same trench line. Apply the ammonium nitrate when the blackberries begin to bloom, cover the trench lightly again and water the soil generously.

Tips and Warnings

  • While some gardeners prefer to apply aged manure to their blackberry stands, use this fertilizing technique with caution. Because you must apply the manure in late autumn, the blackberry canes may not enter dormancy at the optimal time and they may suffer damage from winter conditions. If you apply manure, either reduce the ammonium nitrate application by half or omit it altogether (depending on how the canes look).

Things You'll Need

  • Hoe
  • Granular fertilizer (10-20-20)
  • Ammonium nitrate (optional)


  • Oregon State University: Growing Blackberries in Your Home Garden
Keywords: beautiful blackberry patches, blackberry stand, plant blackberry canes, fertilize blackberries

About this Author

Kathryn Hatter is a 42-year-old veteran homeschool educator and regular contributor to Natural News. She is an accomplished gardener, seamstress, quilter, painter, cook, decorator, digital graphics creator and she enjoys technical and computer gadgets. She began writing for Internet publications in 2007. She is interested in natural health and hopes to continue her formal education in the health field (nursing) when family commitments will allow.