The best way to ensure a thick, green, and healthy lawn in the spring is to give it some well-timed care in the fall—in other words, right now. Here are some tips on how to prepare your lawn for fall:
Fall Lawn Care Tips
1. Remove the leaves
A carpet of colorful autumn leaves may look nice and be fun to play in, but they’re no good for grass. They block the light and trap moisture, potentially fatal knockout punches for the unlucky turf underneath.
Whenever the leaves start to fall, you should blow or rake them away as often as possible. Even after the trees are bare, continue raking out the corners where the wind piles leaves up. If you don’t, come spring, the grass under that soggy, decaying mat will be dead.
2. Keep cutting, but to the correct height
Don’t put that mower away for the season yet. You grass actually continues to grow up to the first hard frost, and so will need regular cuts to keep it at an ideal 2½- to 3-inch height. If you let it get too long, it will mat and be vulnerable to fungi like snow mold.
Cutting grass too short is just as bad, because it curtails the root system—root depth is proportional to cutting height—and impedes the lawn’s ability to withstand winter cold and dryness. Regular mowing also gets rid of those pesky leaves, chopping them up and leaving behind a soil-enhancing mulch.
3. Continue watering
Many homeowners tend to stop watering their lawns in the fall because the weather is getting cooler. Even though this season tends to bring on more rain, more dew, and less evaporation at this time of year, this is most likely not be enough to keep the grass roots well hydrated and healthy going into the winter.
If your lawn isn’t getting at least an inch of water a week—a simple rain gauge is a useful way to keep track—then keep the sprinklers or irrigation system running until the end of October. By that time, you’ll want to disconnect hoses and flush the irrigation system to avoid frozen pipes and spigots.
4. Loosen the soil
Regular aeration—once every couple of years, according to Frith—prevents soil from becoming compacted and covered with thatch, a thick layer of roots, stems, and debris that blocks water, oxygen, and nutrients from reaching the soil.
A core aerator corrects both problems by punching holes through that thatch and pulling up plugs of soil. It’s a good idea to aerate your lawn right before fertilizing. All those holes in your turf will let the fertilizer reach right to the roots, where it can do the most good.
5. Add fertilizer
Just as grass roots need water to last the winter, they also benefit from a shot of the plant sugars that protect roots from freezing and give the entire plant the energy to bounce back in the spring. Those sugars are produced by chlorophyll, which grass produces in abundance when there’s enough nitrogen.
It is recommended to have a late-fall application of a slow-release granular 24-0-10 fertilizer. The numbers indicate the percentage by weight of nitrogen, phosphorus, and potassium, respectively. Potassium is also important at this time because it aids in root growth, disease protection, drought tolerance, and cold resistance. (A soil test can tell you how much of each nutrient your lawn actually needs.)
We caution against spreading fertilizer close to waterways, however; they are vulnerable to contamination from runoff. Lawn Doctor’s company policy is to maintain a 5-foot buffer wherever water is present.
6. Spread seed
Having a dense lawn is a good protection against weeds. So it is important to overseed existing turf. Not only does that fill in thin spots or bare patches, it allows you to introduce the latest in resilient, drought-tolerant grasses. Fall is the best time to overseed because the ground is still warm, moisture is more plentiful, nights are cool, and the sun is not as hot during the day. But even then, overseeding is one of the most challenging lawn-care chores.
You can’t simply broadcast seeds over an established lawn and expect them to take hold. They need to be in full contact with the soil, kept moist until they germinate, and be well enough established before it gets too cold. Renting a slit seeder is a better option than broadcasting, but those machines are notorious for tearing up turf and leaving your lawn looking like a harrowed field.
7. Stay on schedule
Each of the steps above has to be done at the right time for the best results. Otherwise, it’s wasted effort. For instance, overseed too late and the seedlings will be too tender to survive. Fertilize too early and the grass will send up tender blades that will get hammered by the cold. Fertilize too late and the grass roots won’t be able to absorb all those nutrients you’re feeding them. Thinking about aerating in the spring because you can’t get around to it this fall? Don’t bother. Spring aeration just makes it easier for weed seeds to get established.
If sticking to the schedule during the fall is proving too difficult, then Dipietro Landscape can handle the jobs that aren’t getting done.
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