Q.Frost Dates & Planting Timing
Can I plant earlier using row cover?
A.
Yes — lightweight row cover (Agribon, Reemay) provides 2-4°F of frost protection, effectively shifting your last-frost date 1-2 weeks earlier. Heavy row cover or low tunnels can extend that to 3 weeks. Combined with raised beds (which warm faster) and walls of water, you can plant 3-4 weeks before unprotected dates.
Plan around the aggressive bound on your county frost-date page when row cover is in use. Crop calendar pages cover crop-specific protection options.