Troubleshooting Liriope: Leaf and Crown Rot in Green Varieties

A gardener in Calvert County, Maryland, noticed that green liriope plants in an east-facing bed were turning brown and dying, while variegated liriope remained healthy. The problem appeared early in the season.

Diagnosis: Leaf and Crown Rot

Tom identified the issue as leaf and crown rot, a fungal disease that disproportionately affects green liriope cultivars. He provided a link to a University of Florida resource on liriope diseases. Once established, the disease is difficult to control. Prevention focuses on avoiding poorly drained planting sites.

Follow-Up: Replanting Alternatives

The gardener asked for perennial replacements similar to liriope that would be safe in the same area. Tom recommended contacting the Calvert County Extension Office for local advice. For ground covers in partial shade, he suggested creeping myrtle (Vinca minor), hostas for shade gardens, and creeping Jenny (Lysimachia) as options. For sunnier spots (the bed receives sun most of the day), he listed coneflower, liatris, rudbeckia, coreopsis, low ornamental grasses, knock-out roses, sedum, phlox, artemisia, and yarrow.

Proper diagnosis and site-appropriate plant selection are key to recovering a healthy landscape.