Improving Clay Soil - Knowledgebase Question

Dinwidde, Vi
Avatar for Seagraver9
Question by Seagraver9
March 16, 2009
How can one improve one's hard clay lawn to grow anything other than wireweed?

Answer from NGA
March 16, 2009
There's no overnight method to improve heavy clay soil, but you can improve its fertility over a 3-4 year period and then maintain it by annual incorporation of organic matter. You can also help loosen your soil by sowing a cover crop in the fall and digging it into the soil in the spring prior to planting. Start with 4-5 inches of compost or other organic matter over the top of the garden bed and digging it in to a depth of 10-12 inches. Add an organic mulch and dig it in this fall prior to planting your fall cover crop. Expect it to take several years - but with persistence you can have terrific soil.

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