TLDR Review: Preen Extended Control Weed Preventer
Verdict
Before splurging on this posh weed assassin, consider its effectiveness and pet safety. If your furry friend roams the garden or you're on the hunt for a failsafe weed warrior, you might want to scope out alternatives like Regular Preen or the safer Preen 3 months. Just make sure to read the room (or garden) and choose wisely.
- Top pro:
- Highly effective at reducing and preventing weeds, even on various surfaces like gravel and soil.
- Top con:
- Hold on to your fur babies! There's a potential danger to pets, especially dogs, so pet parents beware.
Score
Preen 246422 Extended Control Weed Preventer receives a low score due to mixed effectiveness in controlling weeds, with numerous users reporting an increase in weed growth despite proper application. While some customers appreciate its long-lasting weed prevention capabilities, the product has fallen short of expectations for many, especially when compared to the original Preen formula.
Pros
- •Highly effective at reducing and preventing weeds, even on various surfaces like gravel and soil.
- •Saves time on weeding and is considered worth the cost, despite being on the pricier side.
- •Product lasts a long time and is frequently purchased yearly by many users, showing loyalty and satisfaction.
- •Easy to use - just spread, rake, water, and voila! Weed worries be gone.
- •Recommended to use on top of both fresh and existing mulch for an immaculate garden look.
- •Has had users coming back for more for over 2 years, with plans to continue due to positive results.
Cons
- •Hold on to your fur babies! There's a potential danger to pets, especially dogs, so pet parents beware.
- •Some users found an unexpected twist: weeds looking healthier and more vigorous post-use. Maybe it misunderstood the assignment?
- •Its effectiveness has been questioned by some, with reports of it lasting less than 3 months, making you wonder if it's just taking a mini-vacation.
- •Compared to its cousin, Regular Preen, it's like it didn't quite graduate with the same honors in weed control effectiveness.
- •For the price it demands, some users expected to be wowed but were left feeling like they attended a lackluster garden party.
Product Score
Calculated by ShopSavvy from the professional reviews and customer ratings we collected for this product.
Why this score?
Preen 246422 Extended Control Weed Preventer receives a low score due to mixed effectiveness in controlling weeds, with numerous users reporting an increase in weed growth despite proper application. While some customers appreciate its long-lasting weed prevention capabilities, the product has fallen short of expectations for many, especially when compared to the original Preen formula.
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How we researched this
About this review: it summarizes the professional reviews and customer ratings ShopSavvy collected for this product, alongside prices from 17 retailers in ShopSavvy's price data, most recently seen Oct 1, 2026.
Where to Buy
| Retailer | Price | Last seen | Buy |
|---|---|---|---|
| $47.95 | Oct 1, 2026 | ||
| $53.49 | Oct 25, 2024 may have changed | ||
| $56.29 | Oct 25, 2024 may have changed | ||
| $59.88 | Oct 25, 2024 may have changed | ||
| $59.98 | Oct 25, 2024 may have changed |
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