Re: amending clay soil
Organic amendments are the only thing that will convert clay soil to something that will support life. Compost can be purchased in bulk quantities at any landscape supply if you want to amend the entire area, or it can be bought in bags for point of planting amendment, meaning mix it in the hole that each plant is placed in.
Whatever method you use, be sure to maintain the soil level at 3 to 4 inches below the siding or wall surface of the house, with adequate slop away from the house to prevent water pooling along the foundation.
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