Is it okay to overseed in November
Emma Miller
Updated on April 12, 2026
While planting grass seed in November is too late to make the fall growing season, there is a method called dormant seeding. Through dormant seeding, grass seed can be planted in November when the weather is cold enough to keep it dormant until the weather warms up in the spring.
How late in the fall can you overseed your lawn?
Although September is the best time, often we can still plant grass seed up to October 15 with good results. The problem with late season seeding is that Mother Nature is working against us. Shorter days and cooler temperatures prolong the germination of the seed and its establishment.
What grass seed can I plant in November?
- Bluegrass Species. …
- Fescue Species. …
- Improved Tall Fescue. …
- Ryegrass Species. …
- Planting a New Lawn. …
- Lawn Care. …
- Overseeding Warm-Season Lawns. …
- Dormant Seeding.
Is it too cold to overseed my lawn?
How cold is too cold for grass seed? If soil temperature drops below 9 degrees, it can get too cold for regular grass seed to grow. The ideal soil temperature for grass seed germination is 9-12 degrees and just like any seed, grass seed needs the right conditions, with warmth and moisture the key to germination.Does overseeding in the fall work?
Why Fall Is the Best Time for Overseeding Fall is the time to perform your lawn overseeding because the soil temperature is still warm. Therefore, it is the perfect time for germinating grass seed. Plus, weed seeds don’t germinate in the fall, and that means less competition for your new grass seedlings.
Is it too early to overseed my lawn?
Fall is the best time to introduce new seed into an existing lawn of cool-season grasses. But, depending on your grass type, overseeding in spring can yield good results, too, if it’s done early enough in the spring to give seedlings enough time to mature before the onset of the summer heat.
Can you overseed in winter?
Dormant seeding is the collective term for overseeding lawns in late fall and winter, when soil temperatures are too cold to allow grass seed to germinate. In the mid-west, the opportunity for dormant seeding is best from mid-November through early March, while soil temperatures remain below 50 degrees.
Is now a good time to overseed?
The best time to overseed your lawn depends on where you live. In the cooler northern climates, the best time to overseed is in late summer to early fall. In fall the soil is warm enough to support germination, but the temperatures aren’t too extreme for the tender new grass to develop before winter sets in.Does grass seed grow in October?
You can generally sow lawn seed and grass seed mixtures between March and October as long as the seedbed is kept moist during dry spells, but this season is extended when weather conditions are favourable.
Is September a good time to reseed lawn?September is a good time to build toward healthier, thicker tall fescue grass for next year by adding grass seed to your existing lawn, or overseeding, a Kansas State University specialist said. … Good seed-soil contact is vital if the overseeding is to be successful.
Article first time published onWill grass grow if planted in November?
Most grasses grow readily from seed and do well with fall planting. Planting grass in November works best in mild climates, but even in cooler climates, you can plant in the fall. The grass will sprout quickly if the weather remains mild.
Is it too late to fertilize your lawn in November?
Timing is everything when it comes to late fall fertilization. You should wait until the grass has stopped growing and rarely needs mowing. It’s okay if your grass still has some active growth, but it should be slow enough that you don’t need to mow it. However, you don’t want to wait so long that the ground freezes.
Can I just throw grass seed down on existing lawn?
Overseeding. Sowing new grass seed over your existing lawn is known as overseeding. … While it’s possible to simply sow the new grass seed over your existing lawn, taking the time to prepare your lawn beforehand will increase the likelihood of seed germination and improve your end result.
Is it too late to seed grass?
Cool season grasses should be laid down in late summer and early fall. … Put down grass seed too late and if the seeds do not sprout before the first frost then they will lay dormant until the next growing season. However, if the seeds begin to sprout before the first frost then the seedlings will not survive the winter.
What month should I overseed my lawn?
Early fall is the very best time to reseed. Soil temperatures are still warm, which is necessary for optimum seed germination, and cooler air temperatures are better for grass growth. There will also be fewer weeds for the grass to compete with at this time of the year.
Can you overseed too often?
It would not be good to put more seed overall. If you planted at the correct rate and then seed again, you could end up with seedlings that are too thick and don’t grow well. The seedlings come in as thin plants. They will thicken up, especially after you start mowing.
Can I overseed twice in the fall?
Performing both aeration and overseeding services will greatly improve the aesthetics and the function of your turf, and doing this twice per year (in the Spring and Fall) will double your efforts but could quite possibly double the likelihood that your lawn is everything you’ve always wanted it to be!
Can I overseed in fall and spring?
There are two ideal times of the year to overseed your lawn – fall and spring. Fall is the best choice. The soil is still warm which means the seed will germinate faster. Also, weed growth tapers off after summer, so your new grass won’t have to compete for sunshine, water, and nutrients.
Can you aerate and overseed in October?
All of that stress can highly impact your turf’s health, which is why you need to consider fall aeration and overseeding. Conditions tend to be best between September-October when the days and nights are cooler. During this period, the temperatures are ideal for seed germination.
Should I aerate before overseeding?
It is not a must that you aerate your lawn before overseeding. However, since aeration loosens up compacted soil, improving the supply of oxygen, and provides nutrients and minerals to the new grass seed, it will improve germination and growth rates and help the grass grow thicker faster.
When Should I aerate my lawn in the fall?
Fall aeration should take place mid to late October after temperatures have cooled down. Aerating in the fall preps your grass for the spring. Your lawn will grow greener and thicker the following spring after fall aeration.
Do I fertilize or overseed first?
Stop fertilizing for at least a month before overseeding. The fertilizer makes your grass grow faster, which makes it harder for the new seeds to take hold. Identify your grass type or the type of grass you want to grow, so you can manage it appropriately.
Can you use too much grass seed?
Don’t overdo or cut corners. Too much grass seed causes undue competition for resources such as light, water and nutrients, and grass seedlings struggle as a result. Too little seed leaves lawns thin or bare.
What is the best temperature for overseeding?
1. Overseed at the right time. Cool season seeds germinate when air temperatures are about 60 to 75°F, and when soil temperatures are about 50 to 55°F. Planting too early or too late in the season will lengthen the time it takes for the seeds to germinate, or prevent them from germinating at all.
Can I overseed at night?
Seeds will not germinate if the temperatures are cold at night, or are fluctuating from high day temperature to very low night time temperatures. Very hot weather will also inhibit seed germination.
How cold can it be to overseed?
The Short Answer. Generally speaking, if the daytime temperature is cooler than 60°F, that means that your soil temperature will be lower than 50°F. In this case, it’s probably too cold for you to plant grass seed. If there is still the possibility of frost outside, then it’s definitely too cold to plant grass seed.
What does overseeding mean?
Overseeding is the planting of grass seed directly into existing turf, without tearing up the turf, or the soil. It’s an easy way to fill in bare spots, improve the density of turf, establish improved grass varieties and enhance your lawn’s color.
What should I put on my grass in November?
Look for products such as 30-0-0, 27-3-3 or similar. The formulation of nitrogen should be quick release. That means once it is applied and watered into the soil, it is readily available for the plant. After applying the fertilizer, be sure to sweep or blow any fertilizer pellets back into the lawn.
How late can you put down winter fertilizer?
In general, try your best to apply it between September 1 and October 15. The farther north you live, the earlier you should apply it. The goal is to have at least one month of active grass growing weather remaining before winter takes its grip.
Should I feed lawn in November?
At The Grass People we recommend feeding your lawn at least twice per year, once during the spring and again during autumn. An autumn/winter feed will perk your lawn up after a busy summer and protect the grass during harsh winter conditions.
Should I put topsoil over grass seed?
You don’t need to turn the topsoil over. Just break it up so the new grass seeds’ roots can easily grow through. If you just have a small area to seed, a digging fork will do the trick. For larger areas, consider a core aerator.