TLDR Review: Preen Weed Preventer Plus Plant Food
Verdict
For those looking to stop weeds *before* they sprout, this product offers a solid, convenient option that also feeds your plants. However, if you’re dealing with existing weeds or want quick eradication, you might want to consider a product specifically designed to kill weeds upfront. Since it performs best as a preventive measure and enhances plant health, it’s ideal for early-season garden prep and ongoing fertilization.
- Top pro:
- Effective at preventing weeds from taking root if applied before they appear
- Top con:
- Does not kill existing weeds, only prevents new growth
Pros
- •Effective at preventing weeds from taking root if applied before they appear
- •Comes with a useful scoop for easy application
- •Includes a reusable lid, making storage convenient
- •Contains fertilizer, promoting healthier plants and better garden growth
- •Easy to sprinkle over exposed areas with minimal effort
- •Suitable for fall and winter fertilization, extending its usefulness year-round
- •Performs reliably and meets expectations, according to several reviews
- •Better value compared to natural alternatives like corn gluten in cost and results
- •Well-suited for large yards and extensive weed control needs
- •Can be used in conjunction with mulch for improved garden health
Cons
- •Does not kill existing weeds, only prevents new growth
- •Needs to be applied *before* weeds germinate; ineffective against established weeds
- •Requires multiple applications over several months for larger areas
- •Some users report it seems to fertilize weeds rather than eliminate them
- •Does not address current weed infestations, leading to frustration if weeds are already present
- •Overall performance is average without standout features
- •Followed instructions precisely but saw no weed control benefits in some cases
- •Effectiveness can be limited if not applied early enough in the growing season
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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 14 retailers in ShopSavvy's price data, most recently seen Sep 30, 2026.
Where to Buy
| Retailer | Price | Last seen | Buy |
|---|---|---|---|
| $34.76 | Sep 30, 2026 | ||
| $35.49 | Sep 18, 2024 may have changed | ||
| $36.68 | Sep 18, 2024 may have changed | ||
| $39.99 | Sep 18, 2024 may have changed | ||
| $39.99 | Sep 18, 2024 may have changed |
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