Clover is a legume and it helps absorbs nitrogen from the atmosphere and fix it into the soil. The clover has an extensive root system that helps breaks up soil compaction of clay soil. Additionally, clover acts as a ground covering and also maintain good soil nutrient.

What clover grows best in clay?

Crimson clover (Trifolium incarnatum), a cool-season annual, grows on clay soil if it drains well. It’s best planted from September to October so it can become established before winter weather sets in.

What grows in poor clay soil?

Lettuce, chard, snap beans and other crops with shallow roots benefit from clay soil’s ability to retain moisture, and broccoli, Brussels sprouts and cabbage often grow better in clay soil than looser loams because their roots enjoy firm anchorage.