Plastic Landscape Fabric Causes Root Rot: How to Fix the Bed

Plants keep dying in a bed where plastic was laid under pebble rocks with planting holes cut. The soil is rocky, hard clay. You suspect the plastic prevents drainage, causing root rot.

The Problem

Plastic blocks air and water movement, killing beneficial soil microbes and creating anaerobic, sour conditions. Roots suffocate and rot.

Solution

1. Remove all rock and plastic.
2. Spread 2 inches of finely ground pine bark and 2–3 lbs agricultural lime per 100 sq ft.
3. Till into the top 6–8 inches to loosen soil and improve drainage.
4. Replace plastic with permeable landscape fabric, then reinstall rock.
5. Test pH in 30 days; if near 6.0, replant.

This restores a healthy, aerated root zone.