Evergreen Radiant Silver Turf CoverEvergreen Turf Covers have been developed as an essential management tool for Turf Managers worldwide. It will protect established turf areas and accelerate turf growth for new constructions. It can be used repeatedly and will last for many years. Small: 24. 3 x 3. 04m = 74m2 Medium: 20. 5 x 40m = 820m2 Large: 20. 5 x 70m = 1435m2 12 Year Warranty. Evergreen Turf Covers add up to 25% more heat back onto the pitch to aid in growth and seed germination.