Top Ten Herbaceous Plants for Heavy Clay

Below is a listing of clay tolerant flowering plants that will die back each winter. As with all other herbaceous plants you will need to put some time into mulching around plants with compost to improve soil fertility as well as lock in soil moisture and keep back weed growth. Mulching is useful on clay soils as the organic matter will loosen the soil aiding free draining and root penetration.

Many of these plants will also require lifting and dividing to encourage rejuvenated growth and flowering as well as stacking to stop taller plants from collapsing.

Click on the plant or genus name to view information, cultivation tips and pictures.