Does FROZEN GRASS SEED Grow Faster?? (2023)


Wanted to experiment a bit before temperatures started getting too cold, and see if frozen grass seed grew faster or better than seed that wasn't frozen.

GCI Blue Heat Kentucky Bluegrass seed:

My grass blend (KBG/Rye):

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Does grass seed grow faster when it's frozen? I want to find out let's get started, so I've got two flower pots here, some potting mix to use as the base and I've got two bags of grass seed.

I have gci blue heat and I have this seed here, which is the seed that I planted in my backyard.

This is actually the same blend that is my entire lawn, so I'm gonna try both of these.

So what do I think is gonna happen before I do anything nothing's been done? I have no idea what's going to happen.

I have never seen this done before, and I've only heard it said in theory.

So my guess and I'll tell you why.

But my guess is that the frozen seed is going to germinate faster than the room temperature seed and the reason why I think that is because seed germinates when it gets warmer and when it's frozen and it then immediately goes into a warmer climate.

It's gonna get warmer at least that's my thinking.

It makes sense in my head.

Will it make sense in reality we'll find out? Let me know what you think is gonna happen before you continue on in this video.

Just leave a comment down below and let me know what you think be kind of fun to see what you thought before.

It actually happened against what actually happens, maybe you're right and I'm wrong.

Maybe I'm right and you're wrong.

Maybe we're both right, maybe we're both wrong.

So, let's throw it in the freezer, the ones that are going to be frozen.

Anyways- and I will see you tomorrow so all right next morning and I've got the pots ready to go here and I'm not going to add anything to this other than water not going to do any fertilizers.

Nothing! It's just going to be straight: water, grass, seed, soil and I've separated each pot in half.

So you have a not frozen and a frozen side and they're all labeled everything's ready to go so.

The first thing I'm going to do is: go ahead and plant the dry seed, the not frozen seed here and get that done, and then I'll go ahead and pull the seed out of the fridge put it directly in so that there's no real carry over, not sure that will really make a difference, but I want to go directly from the freezer to the pot three weeks later, all right, so we are just under a month's worth of time, since I started experimenting with this frozen versus not frozen grass seed and I'm ready to share some results with you.

I'm ready to show you how things are looking here and go into a little more detail, things that I've noticed along the way and just kind of show you my findings and let you know if this is really worth it.

So here we go now before I get into too much detail here.

I do want to just let you know that the average high temperature over the last month has been about 73 and the average low temperature around 42., so pretty good growing conditions for this grass seed type here- good environment.

So just looking at these temperatures that I kept track of throughout this experiment, the highest day was about 82 and the lowest was about 33, so we did get flirting with freezing temperatures.

The last two nights- I will say I did bring these inside the house because we were below freezing over the last couple nights so brought him in the house, and then I stick them outside to get some more sun during the day.

Give them a little water and they've been doing fine they've been doing really good.

So I want to start with the mix here.

That is what my entire lawn is.

This is called a blue ribbon blend.

I will leave links to both of these seed blends in the description below, if you want to check them out now on this side.

Here is the seed that was frozen prior to planting and on this side here is the seed that wasn't frozen prior to planting.

As you can see, the frozen side is quite a bit thicker and a lot more substantial than the side.

That's not frozen, so I will say that around day nine is when I first started, seeing sprouts of rye grass- and I saw those sprouts on the frozen side so day, nine frozen side about day 11.

I started seeing sprouts on the unfrozen side.

As far as germination goes.

They probably honestly germinated around the same time, but I did see sprouts a day or two earlier on this side than this side.

This is the gci blue heat blend.

This is purely kentucky bluegrass and, as you can see, the frozen side is a lot thicker, a lot more full than the unfrozen side here, both sides, interestingly enough germinated and showed sprouts on day 11.

So I thought that was really interesting.

I thought it was kind of a bust there at first, but after giving it a few more weeks to continue growing and things like that.

It's pretty clear that uh, there is a lot more here than over here.

So obviously the real question is is: is it worth freezing your grass seed before you grow it? I'm not sure that it is obviously there's a difference in these, but it's not substantial enough of a difference for me to want to go and take the time and the effort and the planning and everything else that goes into having to freeze grass seed, especially depending on your yard size.

Some of you are going to have 50 pounds, 100 pounds or so of grass seed and again, depending on grass type.

You might need even more than that, there's so many variables and who has room in their freezer for a big bag of grass seed.

I don't, I think, that's going to go ahead and wrap it up for me.

I don't really know what else more to talk about with this, but I think I'll leave the final verdict up to you.

What do you think? Let me know in the comments, if you think it'd be worth freezing your grass seed to get results like this or if it's just worth going through the the regular motions putting it out without freezing it, and you know starter fertilizer and everything like that.

Obviously none of this was treated with anything other than what was in this potting soil mix.

I don't know, what's in there, there's probably a little bit of fertilizer, but all I did was water.

It that's going to go ahead and conclude my experiment.

I hope this was fun for you.

It was really fun for me and I think I learned a couple things and it was fun to watch some grass grow and we'll see if we can keep these over the winter and do something with them, we'll see, make sure you're subscribed to the channel if you're not.

Thank you so much for watching, and I will see you in the next video you.


Does freezing grass seed make it germinate faster? ›

Freezing temperatures generally have a negligible effect on grass seeds before they germinate. However, real problems can occur if temperatures drop below freezing before newly emerged seedlings have had a chance to develop sufficiently.

Will grass seed grow after freeze? ›

You can't seed once there's been a frost

Myth: Once there's been a frost, there is no chance that seed will germinate. Fact: An early season frost may affect seed that has already germinated, but should not affect seed still in its casing.

Does freezing temperatures kill grass seed? ›

The easy answer is that frost will not kill grass seed, but that does not mean that you should plant grass seeds when there is danger of frost. While the seeds will survive until the next growing season, any seeds that sprout into seedlings will not.

How do I speed up grass seed germination? ›

Use a “mist – lightly water – deeply water” process like this: After seeding and fertilizing, you'll want to keep the top inch of soil moist until the seeds start to germinate (aka sprout). This means misting the area once a day, maybe twice if it's unusually hot out there—but don't let the area get soggy.

Does soaking grass seed speed up germination? ›

You'll often find that by soaking your seeds ahead of time, you've shaved a few days to even a week or more off the germination time. Keep the soil uniformly moist and you should see the first sprouts within a couple of days.

What temperature kills grass seed? ›

If the daytime temperature is below 60°F then soil temperature is below 50°F, making it too cold; if there is frost or still a danger of frost, then it's too cold. If it's too cold, the grass seeds will likely rot.

Can grass seed grow in 40 degree weather? ›

The average minimum temperature required for grass growth and seed germination is between 46-50 degrees Fahrenheit, and some species can grow in temperatures as low as 40 degrees Fahrenheit.

What happens if I plant grass seed too late? ›

Grass that is seeded late can die as a result of the cold harsh conditions, or due to drying out. Freezing and thawing of the soil, coupled with a lack of moisture, leaves the tender roots and crowns susceptible to desiccation. Seeding late into the season still requires the same steps.

Will grass seed grow on top of dirt? ›

Will grass seed germinate on top of the soil? Yes; in fact, germination will suffer if too much soil is placed on top of the seeds. The experts at Jonathan Green recommend placing a thin layer of mulch or topsoil over them to help keep them moist and warm and promote growth.

What is the nighttime temperature for grass seed germination? ›

If you're in southern and southwestern areas of the United States and you have a warm-season grass, then you should sow your seeds when the air temperatures at night are only a little above 65° in the springtime.

What kills grass seed? ›

Spray the layer of newspaper with water and then add an additional layer of newspaper. In total, alternate between laying papers and spraying the paper until you have at least seven layers of newspaper. The newspaper will kill the grass and biodegrade, adding nutrients to the soil.

How often do you water grass seed? ›

New grass should be watered twice a day (or more under dryer conditions) to keep the top two inches of soil moist at all times. Water daily until all of the grass seeds have germinated, then it will be ready to begin a regular watering schedule.

Does 1 grass seed produce 1 blade of grass? ›

Each seed shoots up one blade of grass, and then they spread like a carpet.”

Can grass seed germinate in 2 days? ›

Most grass seed will start growing in about 10-14 days, but sometimes it can take up to 30 days. When you're planting new grass seed in your yard, it can seem like it's taking forever to start sprouting.

What is the fastest germinating grass seed? ›

What type of seeds grow the fastest? Bermuda grass is the fastest-growing warm season grass, germinating in as little as 10 days. Ryegrass, which grows in cool climates, also germinates that quickly.

Is morning dew enough to germinate grass seed? ›

Moisture from morning dew keeps the seed bed moist and the less intense sun rays slow the rate of evaporation. The soil temperatures are still warm and the cool rains make it the perfect time to create that beautiful lawn that your neighbors will envy as they look over your fence.

Can grass seed germinate in one day? ›

Grass seed germination can start as soon as five days after planting, or it can take up to one month to see sprouts. Weather, soil, and seed type are all factors that will dictate the growth time needed for the grass to sprout. Pre-germination and other methods can be employed to hasten the sprouting process.

What month should I put grass seed down? ›

The best month to put grass seed down depends on the type of grass you have. The best time to plant grass seed for cool-season grasses is in early fall or around September. For warm-season grasses, late spring or early summer is the optimal time.

Will grass seed germinate in 50 degree weather? ›

Cool-season grass seed germinates best when soil temperatures reach 50 to 60 degrees Fahrenheit. This roughly corresponds to daytime air temperatures in the 60°F to 75°F range. An inexpensive soil thermometer, available at garden stores and online retailers, can help eliminate the guesswork.

Will grass seed grow in 90 degree weather? ›

Warm-season grasses are originally from tropical areas of the world and, once established, are able to thrive in scorching sun and high temperatures. They grow most actively when air temperatures are warm, between 70 and 90 degrees F.

Should I water grass seed if it's cold? ›

Most lawn experts recommend watering your grass until the soil or ground temperature reaches the 40-degree Fahrenheit mark. It is true, less water is required and needed when the temperature drops.

Is 40 degrees at night too cold for grass seed? ›

We dormant seed when the weather will be consistently cold, under 40 degrees. December and January are ideal. The cold weather allow for the seeds to lay dormant in the soil, waiting for temperatures to warm up, usually in late March. August and September are still the best months to seed.

How long does it take grass seed to rot? ›

The seed's growth has been halted until specific conditions (like being planted in the ground) are met. Dry grass seeds can survive for two to three years as long as they're not exposed to moisture or extreme weather conditions.

Can you put too many grass seeds down? ›

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.

Can I just throw grass seed down on existing lawn? ›

Overseeding can help you get back to the thick, lush, green lawn you've always wanted. By spreading grass seed over your existing lawn, you can thicken up the thin areas, and your lawn will start to look terrific again. (This is different from reseeding, which is when you start over and plant a completely new lawn.)

Can I put down grass seed every two weeks? ›

Make at least 3 applications of seed, each a week or so apart. More applications are fine, too.

Should I put topsoil under grass seed? ›

Do not put top soil over grass seed, but you can add a thin layer of organic matter to help the seed to germinate. 'Never put topsoil over newly planted grass seed,' says Yamaguchi. 'This won't provide healthy growing conditions – it will actually prevent the seedlings from sprouting by essentially suffocating them.

Should you bury grass seed? ›

Once you finish spreading the seed, use a rake to lightly work it into the soil at a depth of about 1/4 inch. Don't bury the seeds any deeper; grass seed needs adequate light to germinate quickly. After raking, pass over the area with a roller, which helps ensure the good seed-to-soil contact your new seed needs.

Do birds eat grass seed? ›

Birds eat grass seed for a number of reasons but the most obvious is that there's nothing stopping them. An unprotected freshly seeded lawn is an easy meal for wild birds small and large.

Should grass seed be wet at night? ›

Water in the early morning and late afternoon, before and after the worst heat of the day. This will allow the water to seep into the soil before evaporating and also helps to conserve water. Avoid watering at night because the water will sit on the grass for too long and promote the growth of mold.

How long does grass seed last? ›

If stored in a cool, dry place, grass seed can last for two to three years, but you may not get the same results as you would when planting fresh seed. As the seed ages, the percentage of seeds that will be able to germinate diminishes, forcing you to use more seed than normal to get adequate coverage.

Do seeds germinate at night or day? ›

Most seeds germinate best in the dark. The depth to bury them varies by seed, so check your packet or catalog; the rule of thumb is to sow them as deep as “2-3 times the width of the seed.” Some seeds actually do need light to germinate, so don't bury them at all.

What is the secret to grass seed? ›

Keeping your new grass seed consistently damp until it germinates is the most important success factor of all. The seed won't sprout without moisture, and if you water enough to break the seed coating but then let the seeds and seedling grass plants dry out, the young plants will die.

Can you revive dead grass seed? ›

There is no way to revive dead grass, but you can lay new sod to grow your landscape again from scratch. If you notice brown, bare, or thinning areas in your lawn, these are clear signs that you need to sow new seed or replace the sod.

Can you seed grass over weeds? ›

When it comes to seeding a weed-covered lawn, there are two options. You can either spot treat the weeds or thin them. Either way it is important to free up some space for the fresh grass seed to germinate. Both of these approaches have benefits, so it comes down to picking the right option for your lawn.

What happens if you don't water new grass seed everyday? ›

New grass seed requires a consistent watering schedule to grow properly, so you need to stay on top of it. If you don't water your newly planted grass seed often enough it can die, and you'll need to start the process over.

Can you overwater new grass seed? ›

New lawn preparation done properly will have tilled the soil to loosen the ground for the new grass plants. This loose soil is prone to holding large amounts of water. Remember: Do not over-water! Some soil types will get spongy, and walking on it in this condition will leave serious depressions and cause compaction.

Can I water grass seed in the sun? ›

The best time to water your grass seed is early in the morning or after the sun has begun to go down. Watering when the sun is directly overhead is counterproductive and on a very hot bright day not only can be wasteful, as water evaporates faster in heat, but can actually be harmful.

Will grass spread to bare spots? ›

No, most grass will not fill in bare spots on its own. While a few types of grass will spread via their underground root systems, most patches on grass need to be seeded. Before you begin, make sure you properly prepare the bare spots to give the seeds the best chance to germinate and spread.

Should I drag grass seed? ›

After sowing the seed, lightly rake or drag the area. The seed should be covered to a depth of 1/8 to 1/4 inch. While not necessary, you can roll the area lightly to ensure good contact between the seed and soil.

What is the easiest grass to grow? ›

Zoysia Grass

In fact, it's known as being one of the easiest turfgrasses. That's because it can withstand drought conditions and survive in poor soil conditions with little maintenance required. Zeon zoysiagrass is especially popular for its superb qualities.

How do I know if my grass seed is growing? ›

How to Tell If Grass Seed Is Germinating. The most straightforward way to know if your grass seed is germinating is to look at it. If the seed's sprout is pushing up through the soil, it has successfully germinated. If there are no sprouts after two weeks, check the seeds.

Why is my grass seed not growing after 1 week? ›

The main reason grass seed doesn't germinate quickly during the spring months is cool and wet weather. Grass seed that is planted in soil temperatures below 50°F often will not grow. For the soil temperatures to reach 50°F you need 7-10 days of air temperatures to reach over 60°F.

Does rain make grass seed grow faster? ›

Heavy Rain

Keeping the soil moist helps your newly sown grass seed stay put despite wind and moderate rainfall. But heavy or prolonged rain immediately after sowing your grass seeds can be a problem. Grass seed has no roots to absorb moisture or to hold the seed to the soil, so it may be washed away.

Should you soak grass seed before planting? ›

Turfgrass seeds can be soaked in water for 3 to 5 days to germinate. Kentucky Bluegrass (KBG) is slow to germinate and should be soaked for five days. See the chart below for recommendations on how many days to soak the most popular cool-season turfgrass seed.

How can I grow grass fast and cheap? ›

How to Grow Grass Fast
  1. Choose the Right Seed for Your Climate. Choosing the right seed for your climate (cool-season grass or warm-season grass) will help ensure your seed is successful. ...
  2. Plant at the Correct Time of Year. ...
  3. Don't Neglect the Soil. ...
  4. Seed and Feed. ...
  5. Water Until Established. ...
  6. Slow the Mow. ...
  7. Roll Out the Turf.
Sep 21, 2022

Should you put grass seed in freezer before planting? ›

Most grass seeds are extremely durable and can withstanding a range of potentially damaging conditions. But subjecting them to freezing temperatures before planting could reduce their chances of sprouting. While some grass seeds require cold stratification before planting, most do not.

Will grass seed germinate if nights are cold? ›

Daytime temperatures around 60 to 75 degrees Fahrenheit typically mean the soil temperature is between 50 and 65 degrees and perfect for seed germination. If the soil temperature is much lower than 50 degrees, however, the seeds will lay dormant and not germinate.

Why do seeds need to freeze to germinate? ›

Stratification occurs naturally when seeds are sown outdoors through the cold winter. It is a survival mechanism so the seed does not prematurely germinate. Many plants require a period of cold temperatures to break their dormancy cycle with woody plants and herbaceous perennials being some of the more common species.

Should I water before or after grass seed? ›

A few days before planting your new grass seed, water the entire area about 6-8 inches deep each day. Once you've spread the seed, promptly spend about 5-10 minutes watering the top two inches of soil. The seeded area will need to stay moist so the grass seed doesn't dry out and die.

What is the lowest temperature that grass seed will germinate? ›

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.

What is the longest time for grass seed to germinate? ›

Most grass seed will start growing in about 10-14 days, but sometimes it can take up to 30 days. When you're planting new grass seed in your yard, it can seem like it's taking forever to start sprouting.

Why put seeds in the fridge before planting? ›

To prepare for sowing, you stratify the seeds weeks or months in advance. Unlike dry fridge storage, which is a good way to store seeds for future sowing, cool-moist storage in the fridge mimics the winter conditions that gradually break down the seed coat while providing the necessary cool period.

Does freezing destroy seeds? ›

Freezing will kill many seed varieties. It's true that government-run seed vaults freeze their seeds, but they do so in laboratory conditions with specialized equipment and controls that few of us could ever simulate at home. Some people like to include desiccant packets with their seeds to ensure a dry environment.

Should I refrigerate seeds before planting? ›

Refrigerate seeds before planting to improve germination. It's not always so simple as just sticking seeds in the ground. There are a number of techniques and treatments that encourage seeds to germinate.

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