Preen Garden Weed Preventer Plus Plant Food - Lasts Up to 3 Months

Our review of Preen Garden Weed Preventer Plus Plant Food looks at whether this 16 lb. pail is a sensible choice for home gardeners who want a two-in-one solution. The bottom line: it is best for people who maintain flower beds, vegetable plots or shrub borders and want a single, infrequent application that both feeds established plants and suppresses new weed seedlings for up to three months. The included applicator scoop and drum format make spreading straightforward, and many users report healthier blooms and easier bed maintenance after one application.

Key Features

• Two-in-one formula: Prevents new weed seeds from emerging while also delivering a balanced fertilizer that supports plant health.
• Long-lasting control: One application claims to feed and suppress weeds for up to three months, reducing the need for frequent re-treatment.
• Balanced fertilizer: Promotes abundant blooms, stronger root development and increased yields for vegetables and flowers.
• Wide plant safety: Labeled safe for use around over 200 established flowers, vegetables, trees and shrubs, making it versatile for mixed beds.
• Convenient packaging: A 16 lb. pail with an applicator scoop makes measuring and spreading easier and less messy in the garden.

Who It's For

Gardeners with established beds who prefer a maintenance approach that minimizes weekly weeding will appreciate this product, especially those growing a mix of flowers, vegetables and shrubs. It suits users who want a single seasonal application that also supplies nutrients for better blooms and root growth.

It may not be ideal for people starting seeds or transplanting seedlings immediately after application, since weed preventers work by blocking new seed germination. Those seeking an immediate knockdown of existing weeds will need an additional tool or herbicide, because this product focuses on preventing new weeds rather than removing mature ones.

Pros & Cons

Pros

• Easy to apply with the included scoop, which customers frequently praise for speed and convenience.
• Combines weed prevention and plant food, reducing the number of separate products needed in routine garden care.
• Many users report improved bloom vibrancy and healthier-looking plants after application.
• Large 16 lb. pail covers substantial area, making it cost effective for medium-sized yards or multiple beds.

Cons

• Effectiveness varies by user; some report limited weed control depending on conditions and timing.
• Not suitable for preventing germination of seeds you intend to sow, so timing around planting is important.

Specifications

Product	Garden Weed Preventer plus Plant Food
Brand	Preen
Net weight	16 lb. pail
Coverage	Covers 2,560 sq. ft.
Duration	Feeds and prevents weeds for up to three months
Plant safety	Safe around over 200 established flowers, vegetables, trees and shrubs

Our Verdict

Preen Garden Weed Preventer Plus Plant Food is a practical choice for gardeners who want a low-effort, combined fertilizer and weed-prevention step. It offers good value for medium to large beds thanks to the 16 lb. pail and included scoop, and it works well for maintaining established plantings when applied at the correct time.

Frequently Asked Questions

Can I plant seeds after applying this product?
Answer. No, weed preventers stop seed germination, so avoid sowing seeds in treated areas for the product's active period.

How long does one application last?
Answer. One application is intended to feed plants and prevent new weeds for up to three months.

Is it safe for vegetables and flowers?
Answer. Yes, it is labeled safe for use around over 200 established flowers, vegetables, trees and shrubs when used as directed.