DeWitt Ultimate Winter Crop Cover - 2.5oz - 3ft x 250ft

DeWitt's Heaviest Fabric for All-Winter Overwintering, 2.5oz

Perennials and ornamentals left exposed through a harsh winter can suffer damage that a lighter seasonal cover was never built to prevent. DeWitt Ultimate is the heaviest-duty fabric in the DeWitt line at 2.5oz, engineered for extreme cold protection and full-season overwintering, holding heat effectively while still letting irrigation and rain pass through the fabric.

Even on sunny winter days, Ultimate is built to avoid the foliage burn that heat buildup can cause under some crop covers, making it safe to leave in place through the winter months on the compact 3ft x 250ft roll.

Key Features & Benefits

• 2.5oz extreme protection — the heaviest fabric weight in the DeWitt line for maximum freeze protection.
• All-winter durability — built specifically for season-long overwintering of perennials, ornamentals, and cold-sensitive permanent plantings.
• Heat retention with moisture permeability — holds warmth beneath the cover while allowing rain and irrigation to pass through without removal.
• No foliage burn on sunny days — engineered to prevent the heat buildup that causes foliage burn in some crop covers.
• 3ft x 250ft coverage — narrow-width roll suited to individual plant rows, hedgerows, and perennial beds.

Who Should Use This

Growers and landscapers who need maximum available protection for perennials, roses, ornamentals, and other valuable plantings that must survive severe winters in place are the direct fit for the Ultimate.

About DeWitt

DeWitt Company, founded in 1977 in Sikeston, Missouri by Larry DeWitt, has built its line of agricultural fabrics from an original woven weed-barrier product into a full range of frost, ground cover, and shade materials.

Frequently Asked Questions

How does the Ultimate differ from the DeWitt Supreme?

The Ultimate is heavier at 2.5oz versus Supreme's 1.5oz and is built for all-winter, season-long use. Supreme suits seasonal frost events and shoulder-season protection, while Ultimate is engineered for the extended, continuous cold of full winter overwintering.

Can I leave this fabric on all winter without checking on plants?

The Ultimate is designed for extended all-winter use and its no-foliage-burn construction makes it safe to leave in place on typical winter days. Periodic checks are still recommended, especially after heavy snow accumulation or ice loading that could compress the fabric.

Does rain and irrigation water pass through this fabric?

Yes, despite its 2.5oz heavyweight construction, the Ultimate is permeable to rain and irrigation water. That lets moisture reach plant roots without removing the cover during the dormant season.

Will this fabric cause plants to overheat on warm winter days?

The Ultimate is specifically engineered to avoid the foliage burn that heat accumulation causes under heavier fabrics on sunny days. That makes it safe to leave in place during the warm spells that commonly occur in winter and early spring.