Remove Existing Weeds Remove any existing weeds, taking care to remove their roots. Preen garden products do not kill existing weeds, they prevent them. Mulch the Area A three-inch layer of mulch helps retain soil moisture, keeps soil temperature even and looks nice and tidy. Mulch also has preventative properties of its own, assisting Preen in keeping weeds away. Apply Preen Sprinkle Preen on top of mulch. Apply when the garden is dry so Preen granules wont stick to wet plant leaves. Water To Activate After applying Preen, water the granules to release ingredient that forms an invisible barrier that blocks weeds beneath the surface.
Preen Garden Weed Preventer
$6.99
In stock
Preen California Approved Garden Grass x Weed Preventer
- Stop weeds before they start for up to 3 months guaranteed
- Safe for use around over 200 established flowers vegetables trees and shrubs
- Flip-top applicator cap makes it easy to apply
- Apply anytime in spring summer or fall
- Not for use on lawns
Sprinkle around plants then water to activate.
In stock
