# Preen

*Published: 2026-03-26 | Updated: 2026-03-26 | Source: https://shopsavvy.com/products/preen*

---
**Brand:** Preen
**Price Range:** $41.22 across 1 retailers

## Pros
- Significantly reduces weeds, cutting about 85% of new growth when applied properly.
- Effectively stops weeds before they germinate, making it a solid weed prevention tool.
- Comes ready to use immediately, with no setup or mixing required.
- Covers a large area (900 sq ft) in a single application, making it convenient for medium-sized gardens.
- Provides slow-release plant food (9-12-9 fertilizer analysis), which supports healthy plant growth alongside weed prevention.
- Proven reliable and consistent over multiple years of use according to user feedback.
- Easy to use and trusted enough by users to recommend to friends and family.
- Offers good value for the price with quality that meets or exceeds expectations.
- Particularly effective in harsh or challenging gardening conditions such as Florida's climate.
- Saves time by reducing weeding effort in less cultivated areas like rock gardens or driveway cracks.

## Cons
- Does not kill existing weeds; users must clear the area before applying to get full benefit.
- Monthly application is recommended, which might be seen as frequent by some gardeners.
- Not suitable for use in areas where grass, flowers, or other desirable plants are growing as it prevents all seed germination.
- Weighs 6.12 pounds (sometimes confused with heavier packages), so double-check weight when comparing price or quantity with similar products.
- While it reduces weed growth significantly, it does not eliminate the need to weed entirely.

## Specifications

| Attribute | Value |
|-----------|-------|
| Organic | No |
| Brand Name | Preen |
| Concentrated | No |
| Fertilizer Analysis (N-P-K) | 9-12-9 |
| Season Use | Multi-Season |
| Active Ingredient | Trifluralin |
| Container Size | 5.625 lb |
| Time Release | Slow-Release |
| Coverage Area | 900 sq ft |
| Product Type | Weed Preventer & Fertilizer |
| Application Frequency | Monthly |
| For Hydroponic Use | No |
| Product Form | Granules |
| title | Preen Weed Preventer Plus Plant Food 5.625 lb. |

## Last Seen Prices

| Retailer | Price | Availability | Last seen | Store's standard terms |
|----------|-------|-------------|-----------|------------------------|
| [Amazon](https://shopsavvy.com/api/redirect/products/j8CdCrV297s9oVOuUkvw/offers/wrxadDZeBU33yHQNbEnW?source=shopsavvy&medium=product-page) | $41.22  | In Stock | 2023-06-01 (may have changed) | 30-day returns (in store too) |

*Store terms are each retailer's standard return and shipping policy from ShopSavvy's retailer research; some products and categories differ, so check with the store before buying.*

[See every retailer and the full price history on ShopSavvy](https://shopsavvy.com/products/preen)

---

*About this page: ShopSavvy compares prices across thousands of retailers, aggregates expert and user reviews, and tracks price history to help you make informed buying decisions. Prices are collected from retailer listings; the Current Prices table shows the date each price was last seen.*

*Machine-readable access: append `.md` to any ShopSavvy URL, or send `Accept: text/markdown`, to get this page as Markdown. For the same catalogue as structured JSON — product lookup by barcode/ASIN/URL, live prices across retailers, and price history — see ShopSavvy's MCP server at https://shopsavvy.com/agents and the Data API at https://shopsavvy.com/data.*