Securing Solarization Plastic in Wind: Trench and Seal Method

Clemson Extension's Proven Technique

1. Dig 6–8 inch deep/wide trench around plot.
2. Soak soil to break weed seed dormancy.
3. Lay clear UV-stabilized plastic (polyethylene/PVC), stretch tight.
4. Bury edges in trench, backfill to seal.
5. Add bricks/stones on edges for extra wind protection.

Double Layer Boosts Heat

Two plastic layers with air gap (use soda cans as spacers) increases insulation and temperature. Hotter and longer = better weed kill.