Preen Garden Weed Preventer: Blocks weeds for 3 months. Guaranteed
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Preen One Lawncare delivers three essential lawn treatments in one easy application. Kill broadleaf weeds, prevent crabgrass, and feed your lawn - in one time-saving step. For a weed-free, worry-free, one-derful lawn.
Select a Size
Covers 5000 sq. ft.
One application, three treatments.
crabgrass all season and can be applied up to 4 weeks after crabgrass emerges.
dandelions and 250 of the toughest weeds to the root.
your lawn by evenly feeding for 8 weeks without the need to reapply the product.
Watch, learn, then try for yourself
This product may be applied to established lawns as a single application or as split applications in the spring, early summer, or fall. For the best results in the spring, apply this product one to two weeks before the expected germination of crabgrass. When the period of germination for crabgrass and other weeds listed on this label extends into early summer, then a second application can be made at six to ten weeks after the initial application.
Apply the product when grass and weeds are actively growing under adequate soil moisture and favorable temperatures (50°F to 80°F). Do not apply under drought conditions.
In the spring, the ideal time to apply Preen One Lawncare is after the forsythia has bloomed or when the first dandelion flowers appear. For full weed control in lawns in southern areas, make a second application in six to eight weeks for best weed and crabgrass control and for full season fertilization. In the fall, apply Preen One Lawncare when the weather cools and both the grass and weeds are actively growing, generally around Labor Day.
For established lawns, apply Preen One Lawncare when broadleaf weeds are actively growing and prior to germination or tilling of annual grasses. It may be applied as a single application or as a split application in spring, summer, or fall.
You can reseed or overseed a lawn treated with Preen One Lawncare 10 weeks after application.
If the lawn has been seeded recently, wait until after the third mowing before using this product.
For optimum weed control in lawns, apply Preen One Lawncare to grass when the lawn is wet from rain, dew, or sprinkling, as this product needs to stick to the leaves of broadleaf weeds. The lawn should not be watered or disturbed for at least 24 hours after application.
For best results, we recommend that you:
Apply this product when the wind is calm. Do not apply this product to desirable plants or shrubs as damage may result. If the product gets onto other plants, immediately brush or wash it off the foliage.
Use a drop or rotary spreader designed to apply granular fertilizers. Uniform coverage is essential for best results. It should take approximately 2 to 4 weeks to see the label-listed broadleaf weeds succumb.
For use on established bahiagrass, bermudagrass, buffalograss, centipedegrass, fine fescues, Kentucky bluegrass, perennial ryegrass, tall fescues, and zoysiagrass.
DO NOT use on St. Augustinegrass, colonial bentgrass, dichondra, or carpetgrass as serious lawn injury will result.
This product is not for use:
Note: Do not use clippings of treated grass as mulch or in compost piles.
Preen® Guarantee: To the extent consistent with applicable law, Lebanon Seaboard Corporation guarantees you will be satisfied with the performance of Preen® products when used as directed, or your money back. If not satisfied, describe the nature of your problem, and send with proof of purchase to:
Lebanon Seaboard Corporation
1600 East Cumberland St.
Lebanon, Pa 17042
What are the active ingredients in Preen One Lawncare?
1.108% of 2,4-D, 2-ethylhexyl ester
What are the other ingredients in Preen One Lawncare?
The carrier agent/particle for the active ingredient which can be corn cob, limestone, etc.
How does this product work?
Preen One Lawncare contains three components to provide control of most annual grasses and certain broadleaf weeds commonly found in home lawns.
The preemergent herbicide can be applied to established turfgrass to control, annual bluegrass, annual ryegrass, Barnyardgrass, barley++, brome++, crabgrass (large, smooth, southern), dallisgrass (seedling)++, goosegrass, foxtails(green, yellow, giant++), and other undesirable annual grasses.
The fertilizer contains nutrients for turfgrass uptake.
The post-emergent broadleaf herbicide will control over 250 lawn weeds* including dandelion, chickweed, thistle, and clover.
Which weeds are controlled by Preen One Lawncare?
See Use Directions for complete list of weeds controlled.
How long does Preen One Lawncare control weeds?
Preen One Lawncare stops crabgrass and most annual grassy weeds all season and can be applied up to 4 weeks after crabgrass emerges. Preen One Lawncare kills dandelions and up to 250 other tough lawn weeds as listed, to the root.
cupid shaving brush
wild sweet potato
Augustinegrass (Saint) Stenotaphrum secundatum
Bahiagrass Paspalum notatum
Bluegrass (Kentucky) Poa pratensis
Creeping bentgrass Agrostis stolonifera
Ryegrass (Perennial) Lolium perenne
Preen Lawn Crabgrass Control
Prevent crabgrass and other common lawn weeds for up to four months, and kill crabgrass seedlings for up to four weeks.