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The Best preen weed preventer reviews of 2022 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best preen weed preventer reviews of 2022. Check our ranking below.

2,687 Reviews Scanned

SaleRank No. #1
Preen Extended Control Weed Preventer - 13.75 lb. - Covers 2,245 sq. ft.
  • One application blocks weeds up to 6 months
  • When used as directed Preen Extended Control Weed Preventer can be used around more than 600 perennials, groundcovers, shrubs and trees as listed on the product label
  • Applicator scoop included
  • Not intended for use on flower seeds, lawns, vegetable gardens, water gardens or other food-producing or edible plants
  • Not available for sale in NY
SaleRank No. #2
Preen Garden Weed Preventer Plus Plant Food - 5.625 lb. Bottle - Covers 900 sq. ft.
  • Use anytime during the spring, summer, or fall in flower and ornamental garden beds, around ground covers, trees, and shrubs
  • It prevents weeds and feeds plants in one easy step
  • Balanced fertilizer promotes abundant blooms, increased yields and strong root development
  • Safe for use around over 200 established flowers, vegetables, trees and shrubs
  • One application feeds your plants and prevents weeds for up to three months
SaleRank No. #3
Preen Natural Vegetable Garden Weed Preventer - 5 lb. Bottle - Covers 250 sq. ft.
  • Natural solution for weed prevention
  • Apply every 4-6 weeks
  • Prevents crabgrass, dandelions, clover and other common weeds
  • Sprinkle around established vegetables, herbs and fruit
  • Flip-top applicator cap makes it easy to apply
SaleRank No. #4
Preen Garden Weed Preventer Blocks Weeds up to 3 Months (22 LBS, 3520 Sq. Ft.)
  • Stop weeds before they start for up to 3 months
  • Prevents new weeds from sprouting, eliminating hand-weeding
  • Safe for use around over 200 established flowers, vegetables, trees and shrubs
  • Can be used as a refill for flip-top applicator
  • Apply anytime in spring, summer or fall
SaleRank No. #5
Preen Garden Weed Preventer - 13 lb. - Covers 2,080 sq. ft.
  • Stop weeds before they start for up to 3 months guaranteed
  • Safe for use around over 200 established flowers, vegetables, trees and shrubs
  • Apply anytime in spring, summer or fall
  • Not for use on lawns
  • Weed preventer does not kill existing weeds
SaleRank No. #6
Preen Extended Control Weed Preventer Bundle - Covers 3,050 sq. ft.
  • Blocks weeds up to 6 months with 1 application (Preen Extended Control Weed Preventer).
  • Can be used around over 600 perennials, groundcovers, shrubs and trees (Preen Extended Control Weed Preventer).
  • 13.75 lb tub covers up to 2,245 sq. ft. (Preen Extended Control Weed Preventer).
  • 4.93 lb bottle with flip-top cap covers 805 sq. ft (Preen Extended Control Weed Preventer).
SaleRank No. #7
Preen One Lawncare - 36 lb. - Covers 10,000 sq. ft.
  • Stops crabgrass all season and can be applied up to 4 weeks after crabgrass emerges
  • Kills dandelions and up to 250 other tough lawn weeds as listed, to the root
  • Feeds your lawn for up to eight weeks
  • Zero-phosphorus 24-0-6 formula
  • Do not use this product on St Augustinegrass, colonial bentgrass, dichondra or carpet grass as serious lawn injury will result
Rank No. #8
Preen Lawn Crabgrass Control - 15 lb. - Covers 5,000 sq. ft.
  • Preen Lawn Crabgrass Control - 15 lb. - Covers 5,000 sq. ft.
  • B&M Quality Replacement Part
  • Quick and Easy Installation
  • Fits all Hammer Shifters
Rank No. #9
Preen Garden Weed Preventer 2560 Sq. Ft. Granules 16 Lb.
  • Preen Garden Weed Preventer 2560 Sq. Ft. Granules 16 Lb.

Last update on 2025-08-15 / Affiliate links / Images from Amazon Product Advertising API

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FAQ:

Q: When to put down preen?

A: Preen works best when you apply the first round in early spring and a second round three months after the first application. In warm climates, you can start using Preen at any time and reapply every three months.

Q: How does preen prevents weeds?

A: Preen is not a weed killer, it is a weed preventer . Let’s sprinkle some Preen and show you how it works. When activated by water, Preen bonds with the soil in your garden. Preen then forms an invisible protective shield . It actually prevents weed seeds from forming roots. No roots, no weeds, no weeding.

Q: Does preen really work?

A: Preen works on a wide variety of annual weeds, but it won’t have an effect on perennial weeds because they already have established roots. Preen only works by preventing seeds from germinating. However, Preen also makes a lawn weed control product that targets established lawn weeds.

Q: Does preen keep weeds out of gardens?

A: Preen can keep weeds out of the garden for 3-4 months per application . If you live in an area where there is a lot of rainfall or humidity, you may experience run-off of the weed preventer so you may need to reapply before the 4-month mark.

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