A 3.2oz, UV stabilized, polypropylene fabric. It is a strong heavy fabric, which allows it to be more resistant to tearing, puncturing and weed penetration. White Ground Cover can also be used as an alternative to a frost blanket. When applied on top of planting it protects against light frost and cold temperatures by holding heat in during the day and by blocking wind at might. White Ground Cover is permeable, allowing water and nutrients to pass through. It is excellent when used in rose growing production.