Improving Clay Soil for Daylilies with Expanded Slate

A Permanent Soil Amendment for Perennial Beds

Red clay is notorious for hardening into concrete, but expanded slate (sold as PermaTill, Soil Perfector, etc.) creates lasting pore space that keeps soil loose and well-drained. It's an investment, but the results are permanent.

How to Apply

1. Temporarily remove daylilies.
2. Till expanded slate plus compost into the bed.
3. Replant daylilies at the same depth.

Ask your local independent nursery to order expanded slate for you. The improved soil structure will reward you with vigorous, spreading daylily clumps for years to come.