How to Use Black Kow® in Flower Beds
Reviewed by the Black Kow Garden Team · Updated September 2026For a new bed, spread a 1½-inch layer of Black Kow® Organic Cow Manure Blend and mix it into the top 6 inches of soil. For an existing bed, add a ½- to 1-inch layer once or twice a year and mix it into the top of the soil.
Step by step
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1
Clear the bed
Pull weeds and remove rocks and old roots.
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2
Spread Black Kow
Spread a layer about 1½ inches thick.
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3
Mix it in
Work it into the top 6 inches of soil.
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4
Plant and water
Set your plants and water thoroughly.
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5
Top up each year
Add a ½- to 1-inch layer once or twice a year and mix it into the top of the soil.
How many bags of Organic Cow Manure Blend (1 cu ft)
- 4' x 6' bed (24 sq ft): 1 bag at ½ in., 2 at 1 in., 3 at 1½ in.
- 4' x 12' bed (48 sq ft): 2, 4, or 6 bags.
- 6' x 12' bed (72 sq ft): 3, 6, or 9 bags.
Using Organic In-Ground Garden Soil instead
- Spread 3 inches of product.
- Mix into the top 3 inches of existing soil.
- Dig a hole and plant new plants. Apply mulch (optional).
- Refresh annually. One 1.5 cu ft bag covers 6 sq ft.
Products in this guide
Flower Beds FAQ
A 1½-inch layer. That's 3 bags (1 cu ft) for a 4' x 6' bed.
Add a ½- to 1-inch layer once or twice a year and mix it into the top of the soil.
It adds nutrients, moisture retention, and aeration that plants need to thrive.


