Safe for use around over 200 established flowers, vegetables, trees and shrubs as listed on the label
Prevents new weeds from sprouting, eliminating hand-weeding
Easy to use, flip-top shaker cap
Apply anytime spring, summer or fall. Reapply again after three months for continued weed prevention.
Covers 900 sq. ft.
NOT for use on lawns.
Description
Preen Garden Weed Preventer prevents weed seeds from germinating, essentially eliminating the need for tiresome weeding. Shake on bedding areas and water in to prevent weeds for up to 3 months. Use in flower, shrub and all bedding areas. All existing weeds and grasses must be removed prior to use - this product will not kill existing weeds.
Weight: 5.62 Pounds
Duration: 3 Months
Application Type: Granules
Maximum Coverage Area: 900 Square Feet
TCIN: 13966751
UPC: 088685637933
Item Number (DPCI): 084-16-0133
Origin: Made in the USA or Imported
If the item details aren’t accurate or complete, we want to know about it.
Shipping details
Estimated ship dimensions: 8.3 inches length x 4.9 inches width x 11.5 inches height
Estimated ship weight: 6.25 pounds
Return details
This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, delivered to the guest, delivered by a Shipt shopper, or picked up by the guest.
Q: Can this be used in a landscape that has small rocks? Will it permeate through?
submitted by Heather - 2 years ago
A: Preen Garden Weed Preventer can be used in a rock, gravel, brick, or stone bed, around plants are listed as recommended on the label. Weeds must be removed first before application. Water in the Preen within three days of application. Note that this product may cause a yellow/brown/gray stain discoloration on the rock, gravel, or stone. We suggest they consider testing a small area first. Over time, sunlight may help to lighten the stain. Always read and follow label directions. Thank you!
submitted byPreen Customer Support - 2 years ago
Brand expert
Q: Can you use it in existing ground cover and it will not harm the ground cover. Just the weeds
submitted by Denise - 1 year ago
A: Thank you for your inquiry! Preen can be applied around a ground cover once it is fully established. Meaning the ground cover has fully grown/spread everywhere that you want it to. If you are wanting the ground cover to continue to spread then we would advise not to apply the Preen.
Thank you,
Customer Service
submitted byPreen Customer Support - 1 year ago
Brand expert
Q: Can I use this product to kill weeds and grass?
submitted by Ray - 1 year ago
A: Preen Garden Weed Preventer prevents weed seeds listed on the label from germinating. This product will not kill actively growing weeds or grass. Thank you!
submitted byPreen Customer Support - 1 year ago
Brand expert
Q: Is Preen safe for pets?
submitted by Marilyn - 2 years ago
A: Pets may enter a Preen treated area once it has dried from the first initial rain/watering.
The granules will not dissolve right away so if you do not want them to be visible, gently rake in and then water the Preen in.
submitted byPreen Customer Support - 2 years ago
Brand expert
Q: Is this also used for lawns
submitted by bmh45 - 2 years ago
A: Hello!
Preen Garden Weed Preventer cannot be used in lawns. Our Preen Lawn Crabgrass Control would be best for you. It will help prevent crabgrass but also other broadleaf weeds.
submitted byPreen Customer Support - 2 years ago
Brand expert
Q: Need a weed killer that can be mixed with water so it can soak into ground.back yard use.
submitted by Crystal - 6 years ago
A: Thank you for your inquiry! We currently do not produce any products that can be mixed with water to soak into the ground
submitted byPreen Customer Support - 6 years ago
Brand expert
Q: My garden patch was not worked last yr. so is covered in grass and weeds this yr. Is there a weed and grass killer that I can use now and still be able to plant tomatoes and cucumbers?
submitted by Weed killer 4 garden - 6 years ago
A: Thank you for your inquiry! Currently we do not have any products that will work to kill/control grass and would be safe to plant tomato plants and vegetables. We would recommend contacting your Local County Cooperative Extension (which is a local college) or reputable garden center for products that will work to kill/control grass and would be safe for use where you will be planting vegetables.
submitted byPreen Customer Support - 6 years ago
Brand expert
Q: I have rock in all of my beds, will this work if it is applied on top of the rocks.
submitted by amldiva - 6 years ago
A: Preen Garden Weed Preventer may be applied as directed on top of a dry weed free landscape rock area (reapply every 9 - 12 weeks for continued label listed weed seed prevention and be sure to water after application): Caution in that this product may stain porous surfaces such as rock a yellowish/brownish/grayish color; Do not apply if this is not acceptable to you. Thank you!
submitted byPreen Customer Support - 6 years ago
Brand expert
Q: Will this product work on my sand beach?
submitted by Laurie - 7 years ago
A: Thank you for your inquiry! It is not recommended to be applied to a sand beach as the invisible barrier the product creates could easily be disturbed. Also this product is not safe to be applied near any water source.
None of our Preen products can safely be used around or near streams, lakes, rivers, oceans, pools, etc. You can only apply Preen as long as the area is 300+ feet away from the water. Heavy rains can wash the product right into the water source and we wouldn't want to harm the fish as Preen is highly toxic to aquatic life.
submitted byPreen Customer Support - 7 years ago
Brand expert
Q: What are the ingredients?
submitted by Mom of 2 - 7 years ago
A: Thank you for your inquiry! The active ingredient in Preen Garden Weed Preventer is Trifluralin.
Preen is a highly effective weed preventer that has garnered positive feedback from guests for its ability to keep gardens weed-free with minimal effort. Many guests appreciate its ease of use, especially for those with physical limitations, as it significantly reduces the time spent on weeding. While some guests experienced mixed results, the majority found it to be a reliable solution for maintaining beautiful flower beds and gardens throughout the season.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.7
4.7 out of 5 stars
1461 star ratings
4.7 out of 5 stars with 1461 reviews
quality
4.3 out of 5
quality: 4.33 out of 5
value
4.3 out of 5
value: 4.33 out of 5
100% would recommend
6 recommendations
3 out of 5 stars
10 August, 2026Verified purchase
(no review title)
Sort of works
Joi
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1 out of 5 stars
19 May, 2026
originally posted on preen.com
Preen kills myrtle
I applied Preen to a myrtle bed to hopefully prevent Japanese stilt grass from emerging. Killed my myrtle. I will have to have landscaper plant grass or cover with landscaping stones.
Myrtle man
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1 out of 5 stars
Thumbs up graphic, would recommendWould recommend
26 June, 2025Verified purchase
Preen can't be shipped
I can’t even use it. It came with every lid off and Preen all over
Bbbbb
quality
3.0 out of 5
quality: 3 out of 5
value
3.0 out of 5
value: 3 out of 5
Did you find this review helpful?
5 out of 5 stars
31 May, 2025
originally posted on preen.com
Great product
When spring comes, I weed my garden with a weed pole, easy, pick up some big ones, plant my new annuals and apply preen. No weeds grow. After a few weeks I turn my soil a bit with my weed tool and apply again. I love it. I like a weed free garden bed.
Debra H
1 guest found this review helpful. Did you?
5 out of 5 stars
Thumbs up graphic, would recommendWould recommend
8 June, 2024Verified purchase
Preen
So far no weeds. Easy to use. 1 container took care of my entire flowerbed.
Aming
quality
5.0 out of 5
quality: 5 out of 5
value
5.0 out of 5
value: 5 out of 5
1 guest found this review helpful. Did you?
5 out of 5 stars
12 May, 2024
originally posted on preen.com
Love Preen
[This review was collected as part of a promotion.] I have used Preen for my flower beds for the last several years. I am elderly & cannot bend over to weed so this is a godsend. Last year I started using it in my vegetable garden. Since I only plant established plants it worked really well. Between using the preen & a muclh, my garden was a breeze to care for.
DixL
2 guests found this review helpful. Did you?
1 out of 5 stars
7 July, 2023
originally posted on preen.com
Wasted money
Purchased your product for years and have never seen it work so poorly. I even reapplied and still am spending hours weeding my garden. It's either a bad batch or they're reformulated and it's now a bad product.
1 reply from CSR team - 3 years ago
We are sorry to hear of the surprising results experienced with our Preen Garden Weed Preventer product! This product will only prevent new weeds seeds that are listed on the label from germinating. It will not kill any weeds that are up and actively growing. We stand behind our products when applied accordingly so please feel free to reach out to us at customerservice@lebsea.com. Thank you!
Growing Weeds in Minn
2 guests found this review helpful. Did you?
5 out of 5 stars
8 February, 2023
originally posted on preen.com
Excellent Weed Preventer
I'm a PNW flower gardener and Preen works! It is truly a back and knee saver! Every January I check my flower beds for emerging weeds and moss & pull them out or hoe. Then immediately sprinkle Preen all over the clean soil avoiding emerging spring flower bulbs such as tulips, daffodils, iris, peonies, etc. Preen keeps my flower, herb and veggie beds weed free, especially before Easter when the spring flower "show" blooms! Many people stop by to walk thru my garden and always ask how I keep weeds out of the flower beds and I always recommend them to buy and regularly use Preen b/c it works! It's a winner!
PNWGAL
3 guests found this review helpful. Did you?
5 out of 5 stars
1 May, 2022
originally posted on preen.com
Destroys weed seed bank!
Preen works. It's not perfect as it's important to remember to put it down before there are chances of weeds starting to germinate, and if it were perfect, I wouldn't have to remember to do this in time! LOL. I have a steep hill which has been a nightmare to weed; actually somewhat dangerous it's so steep. I started using Preen every winter (I live in CA where weeds mainly grow in the winter) regularly to control the germination of weeds around the existing plantings. It gradually worked better and better. I've been using it for about 10 years now. I think over that time the weed seed bank has been exhausted and now weeding each year on this area, which used to take about 20 hours per year, now takes about 20' or less. Many people may not realize that pre-emergents actually kill the seeds. They don't stop the seeds from germinating; they kill them after they start germinating. This is ideal because over time, it will gradually kill all the weed seeds in the soil surface. A key is to not till or otherwise disturb the soil because you'll just keep bringing new seeds up to the surface and you'll never get rid of all the weeds. Preen is expensive, but it has saved my lower back and knees. Well worth it. Oh and it has never appeared to hurt any of the existing desirable plantings. I wrote this review because I saw a bunch of one star reviews and actually got a bit mad. This is a good product and it can help deal with overwhelming weeding situations. I didn't want other people to think it didn't work. It's just that, like with any herbicide, there are instructions that need to be followed carefully and the target weeds and the timing of application are critical to success.
mikeb
3 guests found this review helpful. Did you?
5 out of 5 stars
28 June, 2021
originally posted on preen.com
Worth the money, so far!
I have used this product for the 1st time this year after I redid my landscaping and this product seems to be doing exactly what its suppose to do, so far!
Drew
2 guests found this review helpful. Did you?
1 out of 5 stars
13 June, 2021
originally posted on preen.com
Not impressed
I used this 2 weeks ago and followed the instructions. Weeds have already come back.,
1 reply from Csr team - 5 years ago
Weeds coming up that soon after application were most likely weeds that were already in the process of germinating by the time Preen was applied. Preen would have no affect on those weeds as it only prevent new label listed weed seeds from germinating. We recommend pulling the visible weeds and reapplying Preen in those areas. We do stand behind our products when applied according to label directions. Please contact us at www.Preen.com/feedback so we may further assist it needed. Thank you!
Jen W
4 guests found this review helpful. Did you?
1 out of 5 stars
21 May, 2021
originally posted on preen.com
Absolutely worthless
I tilled my veggie garden mid March then applied Preen heavily, raked and watered in. Tilled again mid April, applied heavily again and watered in. Planted May 1. Now weeds starting everywhere. Should one should apply it so thickly that it acts as a mulch? See pic and scroll in
1 reply from csr team - 5 years ago
Preen Garden Weed Preventer should be applied to a weed free area at a rate of 1 oz per 10,000 sf on normal soil followed by a watering or rain to activate every 3 months. Tilling a treated area is a soil disturbance and will result in erratic weed prevention. For further assistance, please contact us at customerservice.com
Tony E
1 guest found this review helpful. Did you?
5 out of 5 stars
Thumbs up graphic, would recommendWould recommend
17 May, 2021
Weed be gone!!!
Great fir keeping weeds from germination around my flower beds. Really works!!!
Smart Target
value
5.0 out of 5
value: 5 out of 5
quality
5.0 out of 5
quality: 5 out of 5
1 guest found this review helpful. Did you?
3 out of 5 stars
24 August, 2020Verified purchase
(no review title)
Worked for about a month, now the weeds are coming back. I guess it beats having to pull weeds every week since I sprinkled it down. But, the price of it has gone up since I purchased it in July. So, not sure if I would try it again or not.
CLS
quality
3.0 out of 5
quality: 3 out of 5
value
3.0 out of 5
value: 3 out of 5
Did you find this review helpful?
5 out of 5 stars
31 July, 2020
(no review title)
Quite surprised how well this works! Will definitely buy again!
Debbysu
quality
5.0 out of 5
quality: 5 out of 5
value
5.0 out of 5
value: 5 out of 5
2 guests found this review helpful. Did you?
1 out of 5 stars
7 July, 2020
originally posted on preen.com
Great job except this year!
I have used Preen Weed Preventer and had success for the past 10 to 15 years. This year, it did not work at all. I applied it the same as I have in other years just before a rainfall, with the scoop, etc. I have never weeded more than this year! The same weeds it has prevented in the past are taking over my landscaping. I have talked to a few people who use it, including family members, and they seemed to have the same situation as I am experiencing. What happened this year? I use 4 of the 16# size. It was unfortunately a big waste of money and time this year. Disappointed.
1 reply from CS team - 6 years ago
In this instance sounds like weeds this product does not control. We will reach out to the consumer and offer our money back guarantee.
Lita
2 guests found this review helpful. Did you?
1 out of 5 stars
27 May, 2020
originally posted on preen.com
Huge disappointment
bought the black mulch with the weed prevention and didn't work at all. Within a few days I had more weeks than normal. Huge disappointment
1 reply from CS team - 6 years ago
Sent consumer the link for the money back guarantee.
lks18
4 guests found this review helpful. Did you?
5 out of 5 stars
3 March, 2020
originally posted on preen.com
Used Preen for 20+Yrs.
I would not have used Preen over 20 years if I wasn't happy with it. Theressa
Theressa
9 guests found this review helpful. Did you?
5 out of 5 stars
29 April, 2019
originally posted on preen.com
Worked great! Just as it said it would.
I have been using Preen and Green for years and it works wonderful! It works best in the flower garden if you put it on in the early spring around plants that are at least 3" tall. Lightly scratch it in the ground and water or put it on before a rain shower. It won't work as well if you put it on and then put mulch over the top. If your going to add mulch then put it on the top of the mulch layer and scratch it in and water. If you need to, say if you have a lot of rain, then reapply after about 2 months, again take it in lightly and water. I've also put it in my vegtable but not until the plants are up at least 3 inches. I think people who have had poor results probably haven't read the instructions, this is crucial!
