Preen

Preen Garden Weed Preventer

|379 ratings
Current price is $34.98
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Smart summary

Generated by AI
  • Proactive Prevention: This garden weed preventer effectively stops weeds from growing by blocking their germination before they can start.
  • Extended Protection: A single, simple application provides long-lasting weed prevention, keeping your garden weed-free for up to three months per use.
  • Effortless Maintenance: Eliminates the need for time-consuming manual weed pulling, allowing more enjoyment of a beautiful, clean landscape.
  • Granular Application: Features ready-to-use granules designed for spreading in bedding areas, requiring watering for activation.
  • Preparation Required: For optimal results, all existing weeds and grasses must be thoroughly removed from the area before applying the product.
  • Trusted Efficacy: Backed by over 50 years of proven reliability, this product stands as America's leading garden weed preventer.

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4.6976 out of 5 stars
4.6976 out of 5 Stars. 3644 reviews
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Preen Garden Weed Preventer
Preen Garden Weed Preventer
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About this item

Product details

The best way to control weeds in the garden is to prevent them from getting started in the first place. One easy application of Preen Garden Weed Preventer keeps weeds from sprouting for up to three months. Your garden will stay weed-free all season long. Weeds rob desirable plants of water and other nutrients. Preen weed preventers stop weeds and eliminate time-consuming weed pulling chores.

Go Weed Free

With Preen, you’ll be free to enjoy a beautiful, weed-free landscape. Preen Garden Weed Preventer allows users to apply ready to use granules to prevent weed seeds from germinating. Spread on bedding areas and water in to activate. All existing weeds and grasses must be removed prior to use.

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Specifications

  • 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
  • Safe for use on edibles (see use directions for complete list)
  • Handy applicator scoop included.

Member ratings & reviews

4.7 out of 5 stars
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379 ratings85 reviews
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  1. 5 stars86% (326)
  2. 4 stars8% (32)
  3. 3 stars2% (6)
  4. 2 stars1% (3)
  5. 1 star3% (12)
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Showing 1-3 of 85 reviews

Apr 4, 2025
Reviewer name: JanW
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Preen

Preen helps keep down weeds in my flower beds and feeds them at the same time. Good product!

Helpful?21MZYR5W6Q5M13593852201
Jul 10, 2025
Reviewer name: dpkscv
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great weed prevention for rock landscaping

Preen is a must-have each year for the rock landscaping in our yard. It makes a huge difference in keeping weed growth down and is very easy to apply a few times per year. If we don't do the application early enough in the season before the weeds germinate, we get weeds galore. This stuff really works!! The value pricing through Sam's was awesome as well. Highly recommend!

Helpful?21MZYR5W6Q5M13593852201
Jun 9, 2019
Reviewer name: Pinch13
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

No summer weeding

Once you rid your garden of active weeds, spread Preen in your garden as directed an you will not have to weed again. I have used this for years. The container size at Sams is gigantic. It has saved me from many hours of garden weeding,

Helpful?21MZYR5W6Q5M13593852201

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