How Long After Scotts Weed And Feed Can I Seed

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I hear this question quite a few times this time of year asked in two ways: “I put down my crabgrass preventer earlier this spring, how long do I need to wait before I can seed?” OR, “Can I prevent crabgrass and seed at the same time?” If you have already put down Turf Builder… How Many Days Do You Have to Wait Before Seeding After Weed & Feed?. Weed and feed fertilizers are often used in combination with seeding. Weed and feed formulations consist of two components: a herbicide to kill weeds and a fertilizer to strengthen the turf. The herbicide will weaken the grass as well as the … Houzz — новый взгляд на дизайн дома. Более 21 миллиона фотографий интерьеров, предметов дизайна и свежих идей, а также профессиональные дизайнеры прямо в сети.

How Long to Wait to Seed After Crabgrass Preventer?

I hear this question quite a few times this time of year asked in two ways: “I put down my crabgrass preventer earlier this spring, how long do I need to wait before I can seed?” OR, “Can I prevent crabgrass and seed at the same time?”

If you have already put down Turf Builder plus Halts Crabgrass Preventer the directions state that you should not plant grass seed for 4 months after application. This would mean you will need to wait until the end of August to seed. You may be able to get around this if you only have a few small areas you want to seed. I have seen folks break the crabgrass germination barrier in those spots by cultivating the soil to a 4 inch depth (to disrupt the crabgrass barrier), then mixing in an inch of compost like Scotts Turf Builder Lawn Soil, and then seeding with Scotts EZ Seed. This is not practical if you want to seed a large area, so you will need to wait until early fall to put down your grass seed.

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Crabgrass seedlings about a week after germination. These seedlings quickly choke out new grass seed that is trying to germinate at the same time.

If you have NOT put down your crabgrass preventer yet and you want to seed this spring you should use Scotts Starter Lawn Food plus Weed Preventer instead of Halts. (Note: this is a different active ingredient that does not last as long as Turf Builder plus Halts, however it is your best choice if you want to seed in spring.)

How Many Days Do You Have to Wait Before Seeding After Weed & Feed?

Weed and feed fertilizers are often used in combination with seeding. Weed and feed formulations consist of two components: a herbicide to kill weeds and a fertilizer to strengthen the turf. The herbicide will weaken the grass as well as the weeds and the fertilizer will strengthen the weeds as well as the grass. When applying seed over a weed and feed application, remember that some weed and feeds can prevent grass seeds from growing.

Types of Herbicide

It’s important to know a little about herbicides so you can make the best choice for when to apply seed in an area that has been treated for weeds. The most common types of herbicide in weed and feed products are selective and systemic. Selective herbicides target a species of plant to kill while systemic herbicides work by being absorbed though the roots and then transported throughout the plant, killing it from within. Read the bag label to see what kind of herbicide is used in the weed and feed you are considering using or have used. The bag label will tell you how many days you must wait before applying seed to a lawn that has been treated with that product.

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Seeding

Herbicides can target weeds before they germinate from seed – pre-emergent – or as developed plants – post-emergent. Before you seed, you can use a non-selective, post-emergent herbicide to control any weeds in the area to be seeded. Most of these can be applied up to two weeks before seeding to control any existing weeds. Herbicides should not be used after seeding until the new seedlings are established. Mowing and spot treatments can be used to control weeds until the seeded area is actively growing and requires only maintenance watering. Establishment times vary depending on the type of seed you use and your weather conditions.

Using Weed and Feed

Only use a weed and feed if the weed infestation is completely uniform over the entire lawn and all species of weeds targeted will be affected by the herbicide in the weed and feed. This scenario doesn’t occur often, so it is more likely the use of an herbicide and a fertilizer separately will be needed. If the weeds are uniformly spread over the area to be treated, match the appropriate weed and feed product to your grass, the seed you have recently applied or want to apply, and the time of year.

Know What You Grow

It is important to know what kind of grass you have growing or want to have growing. Certain chemicals act differently on different species of grass and weeds. For example, the common herbicide 2,4-D is toxic to some cultivars of St. Augustine grass (Stenotaphrum secundatum), which grows in the area roughly covered by U.S. Department of Agriculture plant hardiness zones 8 through 10. Another common herbicide, atrazine, is potentially lethal to grass when applied in temperatures above 85 degrees Fahrenheit. Use the instructions on the bag of each weed and feed product to determine how it will affect seeding.

  • University of Florida IFAS Extension: Weed Management in Home Lawns
  • Texas Agricultural Extension Service: Maintaining St. Augustinegrass Lawns
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Sara DeBerry is a graduate of the University of Florida holding a masters degree in environmental horticulture and a minor in entomology and nematology. DeBerry has been writing for government agencies since 2004 and has published peer reviewed scientific articles during her studies at UF.

How Long After Scotts Weed And Feed Can I Seed

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