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how to weed and seed a lawn

Aeration improves your grassroots’ access to air, nutrients, and water. Use a spike or core aerator to break up the soil. If you use a core aerator, be sure to make two to three passes in different directions. Allow the plugs of soil you remove to decompose on top of your soil layer rather than remove them.

For this step, it’s crucial that you follow the directions to the letter. Make sure you apply the proper product at the proper time. It’s a good idea to check out the forecast beforehand, since you don’t want any storms to wash away your herbicide.

Proper maintenance is critical if you want your newly established lawn to stay weed-free. Mow at either the highest or second-highest setting. Vigorous grass won’t be choked out by weeds. Fertilize your lawn as needed to help it thrive.

Step 4: Wait It Out

Keep in mind that herbicides can kill whatever plant life they come into contact with—even if the label says otherwise—so handle with care. If your aim is to re-establish your lawn, as we recommend, killing your existing, thinning grass isn’t a big deal, since you will need to start fresh anyway.

Deep, infrequent watering can help establish your lawn by allowing it to grow deep roots, which can compete against weeds. Try to water your lawn about twice a week, in the morning before the heat of the day sets in. Lawns typically need about 1.5 inches of water per week, but that could vary based on the climate you live in and the type of grass seed you chose.

Grass-like

Once you’ve put in all that hard work, you’ll want to keep up with it. The prospect of regular lawn maintenance can be daunting, from fertilization to aeration to yet more weed control. Hiring a professional lawn care company like TruGreen can alleviate those concerns.

Then, it’s time to add starter fertilizer. Your best bet is to use a starter fertilizer high in phosphorus. However, due to concerns about water pollution, many states prohibit the use of phosphorus in fertilizers. Some states may allow phosphorus in fertilizers for establishing new lawns. If so, you’ll find fertilizers labeled “new lawn” or “starter fertilizer.”

How to weed and seed a lawn

Do To do in September

Do not To do in May

And once your new lawn is established next year, why not invest in some kit to keep it looking in great condition. Our experts have tested the best lawn mowers to buy, as well as the best scarifiers and best aerators.

Step 1

Do not To do in April

Insert a weeding tool under the base of each weed and lever it up to loosen the roots. Pull the weed out by hand.

Total time:

Make sure you’ve got out all the roots, then sprinkle soil-based compost on the patch of bare soil.

Ideally, tackle the weeds after a spell of rain, so it’s easier to push the weeder or trowel down into the soil to dig out any roots. Remove any large clumps of spreading weeds, such as clover and buttercups, using a hand fork.