Content overview: “Struggling with Heavy Clay Soil? Try Vetch, Field Beans, and Forage Peas as Mulch”. The Guardian Lifestyle Oct 9, 2026 • 10:00 AM 1 views Gardening on heavy clay soil can be frustrating, as nutrients are locked away and difficult for plants to access. The standard advice is to add organic mulch like compost or manure, but on sloped plots, rain can wash it away before it improves the soil. A practical alternative is to grow legume cover crops such as vetch, field beans, and forage peas, then use them as a mulch.
These plants fix nitrogen from the air, and when chopped and dropped, they decompose into the soil, adding organic matter and improving structure. This method works with no-dig principles and helps break up compacted clay over time. For gardeners battling stubborn soil, legumes offer a low-cost, sustainable solution that builds fertility right where it's needed. The full version stays on the original page, which this listing opens directly.