DeWitt Supreme Winter Plant Protection Fabric - 1.5oz - 36ft x 500ft - White

Commercial-Scale Frost Protection, +6 to +8°F, 1.5oz

A hard frost can wipe out a season of tender annuals and vegetable seedlings overnight. DeWitt Supreme shields flowering annuals, bedding plants, and vegetable crops from frost and freezing temperatures with a 1.5oz white fabric rated at +6°F to +8°F of protection, creating a warmer microclimate beneath the cover that extends the growing season into cooler weather.

The 36ft x 500ft roll is folded to a manageable 12ft width for easier handling, and the 50% white opacity diffuses light while reflecting excess sunlight to help prevent overheating under the cover on warmer days.

Key Features & Benefits

• +6°F to +8°F frost protection — significant thermal protection for annuals, bedding plants, and vegetables during hard frost events.
• 1.5oz heavyweight construction — durable fabric with substantial thermal mass for reliable cold-weather protection.
• 50% white opacity — reflects excess sunlight to limit daytime overheating while retaining heat at night.
• 36ft x 500ft coverage — large roll for efficient coverage of commercial-scale beds, rows, and nursery benches.
• Folded to 12ft — pre-folded for practical handling without managing the full 36ft width during deployment.

Who Should Use This

Wholesale nurseries, bedding plant growers, and commercial vegetable producers who need reliable heavy-frost protection for large areas of tender crops are the direct fit for this acre-scale roll.

About DeWitt

DeWitt Company, founded in 1977 in Sikeston, Missouri by Larry DeWitt, has manufactured agricultural fabrics including frost protection, ground cover, and shade cloth for growers across the country since introducing its original woven weed-barrier fabric.

Frequently Asked Questions

How does DeWitt Supreme compare to lightweight row covers?

Supreme is a 1.5oz heavyweight fabric providing +6 to +8°F of frost protection, compared to lightweight fabrics around 0.5-0.6oz that typically provide only +2 to +4°F. The trade-off is lower light transmission at 50% versus 70-95% for lightweight covers.

Why is the fabric folded to 12ft?

The 36ft roll is folded to a 12ft working width for practical field handling. Unfold the fabric to its full 36ft width when deploying it to cover wide rows, benches, or multiple beds in a single pass.

Can DeWitt Supreme be left on crops during the day?

The 50% white opacity can allow heat to build up under the cover on warm sunny days. For actively growing crops, remove or vent the fabric during warm daytime periods and reapply before nightfall when frost is expected.

Is this fabric reusable?

Yes, DeWitt Supreme is designed for seasonal reuse with proper care. Let the fabric dry fully, remove soil and debris, and store it rolled or folded away from UV exposure and rodents between uses.