Wilt-Pruf has prevented plants from drying out during harsh winter conditions, transplant stress, windburn, and droughts. Organic and biodegradable, Wilt-Pruf is the only horticulture anti-transpirant that provides long lasting protection for your plants year round, allowing you to spend less time worrying about them and more time enjoying them. Can be used on Christmas trees, fresh greens and all broad leaf evergreens.