Preen ® Garden Weed Preventer helps to prevent germination of seeds from the list of weeds shown on the label for up to 12 weeks per application. It does not kill or inhibit existing weeds in any way.

Here's how Preen Garden Weed Preventers prevent weeds before they even sprout rather than killing them after they’ve already had the chance to grow.

2020年5月4日 · Preen Weed Preventer is a granular garden product formulated to be shaken or broadcast across the soil surface to reduce weed problems. Once activated, it stops weeds from germinating in your flowerbeds, gardens, and around trees and shrubs.

Preen Garden Weed Preventer allows users to apply to prevent weed seeds from germinating. Spread on bedding areas and water in to prevent weeds for up to 3 months. Use in flower, shrub and all bedding areas.

Preen Natural Garden Weed Preventer offers completely natural weed prevention and is safe for use around children and pets. Made with 100 percent corn gluten, this natural pre-emergent herbicide not only keeps weeds out of the vegetable gardens, but it also is effective in beds of annuals and perennials and around trees and shrubs.

Preen ® Natural Vegetable Garden Weed Preventer helps to prevent its label listed weed seeds from germinating up to 4 – 6 weeks per application. It does not kill or damage existing weeds in any way.

When is the best time to apply Preen Garden Weed Preventer? The best time to apply Preen Garden Weed Preventer is during the early spring before the ground warms up and weeds begin to germinate. Typically, this means applying the product after …

Preen Garden Weed Preventer stops weeds from germinating in flower and vegetable gardens, in ground covers and around trees and shrubs. Although Preen will not kill existing weeds, it will prevent new weeds from sprouting - eliminating the need …

The Preen 31.3 lb. Garden Weed Preventer allows users to apply to prevent weed seeds from germinating. Spread this weed preventer on bedding areas and water in to provide garden weed control for up to 3 months.