... Stay Off The Grass. Although these factors help determine how long it takes for grass seed to reach maturity, in general you can expect to wait anywhere from five days for a month … If you have kids or pets, then you are going to have to be a little more engaged. Buying seed from reputable distributors ensures you’re getting a quality product that was packaged and stored according to industry standards. Grass seed germinates at different rates, depending on various factors such as the grass species, weather, time of year and soil moisture. It will last longest indoors under cool, dry conditions and much less in heat and humidity or in a tool… Grass seeds blowing or washing off newly sown soil leads to bare patches and uneven grass growth, but the seeds should stay put on … Customers often ask how long grass seed will keep for. You can expect your seed to germinate at this rate when used within the first year post-packaging. Rodents and other pests also present a problem because they feast on the seed, but leave its husk behind, which can be misleading to an untrained eye as the seed container still appears full. You agree that BobVila.com may process your data in the manner described by our Privacy Policy. This post may contain Amazon affiliate links and as an Amazon Associate I earn from qualifying purchases. The grass seed germination rate—or the number of seeds that actually sprout in a season—is impacted by production location, harvesting conditions, and seed quality before you even bring home a bag. Well, unless it’s unopened and in its original packaging, you might want to use it for nonconsequential seeding projects, such as overseeding. We have two dogs, a black lab and an english setter, so pretty good size dogs, who spend the majority of their day outside. However, it is a different case when the grass is new. Subscribe and listen to our weekly podcast on iTunes or Stitcher. A: Everyone wants a lush lawn with minimal effort and minimal expense, and planting grass seed can be a cost-effective solution. Great, your new lawn is growing vigorously. Most lawns that are seeded by the owner are replaced in 3 years. YourYardGuru.com is a participant in the Amazon Services LLC Associates Program,the Amazon Canada Associates Program and the Amazon EU Associates Programme, affiliate advertising programs designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com, amazon.ca, amazon.de, amazon.fr, amazon.it, amazon,es, and amazon.co.uk. Remember, there are no fast signs that can tell an expired grass seed. And always check the seeds for signs of excess moisture and mildew before use. Even so, don’t neglect visual inspection because the presence of mold/fungus can indicate the grass seed has been damaged by moisture. So whether purchased from a wholesale distributor or your local home and garden shop, here’s what you need to know when solving the mystery, Does grass seed go bad? Typically, germination takes between five and 10 days. The climate condition during which the seed is sown is also very essential for … If you have more questions on this, please contact the company of the grass seed you purchased. We suggest that you should use your seed within 2 years of purchase. If the seeds were placed into sealed containers immediately after harvesting, they will enjoy longer viability. According to the lawn-leader Scotts, grass seed can be stored for two to three years, that is if stored properly. As the grass seed ages, the percentage of seeds that will germinate goes down. Everything comes with an expiration date these days––grass seed included. When to Remove Grass Seed Netting When you have placed your grass seed netting on top of the grass seed freshly grown, you must constantly monitor the growth of the grass. It’s impossible to provide an exact estimation of how much less viable a seed mix can become over time, but seed stored in a typical residential garage could lose as much as 10% germination each year. First Cutting of a New Lawn Grass seedlings take three to five weeks to reach a safe height. May sound like a dumb question but I have just gotten into the reseeding bit, trying to offer clients more than just mow,shrub trimming and replacing mulch, especially after losing 5 more yards this week and starting out spring with a bang and no rain! I had a new patio put in my back yard and it is surrounded by about 4' to 10' of new soil. And what about that bag of grass seed you inherited when your neighbors moved? Breathable materials will allow good air flow and reduce the risk of molding. The type of storage will affect the seeds’ longevity. Then, plan to plant it during the ideal conditions. ©2020 YourYardguru.com, How to Get Rid of Ivy Roots-In 5 Easy Steps, How To Stripe Your Lawn Without a Striper. Well, I hope I have answered some of your grass seed questions. How to Store Grass Seed. In most cases, it would take approximately one to two months after your seeds sprout. Until established, grass seed or plants will die if allowed to dry completely. You can still get results from a bag of grass seed for many years, but the actual “expiry date” depends on how well you store your seed. Providing you store seed in cool dry conditions, it’s actually longer than you might think. I also want to stress that using grass seed that is aged may not give you the same results and new grass seed. Depending on the type of grass you plant, germination can take between five and 21 days. You also want to know if these seeds are good or not. […] Q: I purchased two bags of grass seed last spring, and I am finally getting around to using them. Like milk, bags of grass seed have an expiration date on them. Seeds are a magnet for moisture, so drying the seeds and placing them in a sealed container is recommended for long-term storage. These bags have perforations that permit trace amounts of humidity to enter, reducing germination over time. Question: I just found a bag of grass seed I bought about 3 years ago. By Alisa Martin and Bob Vila. However it can also take from minimum 4 days to maximum forty days. These planting times allow grass seed to become established more quickly. The best way to decide what to do is to lift up some straw and look for fescue seedlings underneath. According to Scotts, if it is stored in a cool, dry place, the seeds can last up to 2-3 years. It's a fairly large area including the part where the machinery tore up the lawn. Your product label will tell you what to expect. The ground should be saturated with water just enough for the seed to stay damp, but it should not reach the point of running off. A new lawn is vulnerable for the first month or so after sprouting and needs time to become established. Still, bulk storage bags will do the trick if you intend to plant the seed in the coming season. Ideal conditions for seed storage begin with a dry, cool, and dark space. You can leave your netting until such a period that your grass is fully grown. In addition, grass seed cannot tolerate being exposed to direct sunlight or rain for long periods of time. The older the bag gets, the less effective it is. That way, you won’t waste a lot of time and money if the seeds don’t work. Make sure you only mow the top third of the grass blades. On the other hand, if you think the straw is hindering the growth of some of the seedlings, lightly rake it off with a leaf rake. That is why it is important to know when to mow new grass so that you will not hurt their normal growth and establishment of soil system. If more than ten percent are white, the straw is keeping them too dark and you need to rake it off. With proper care, all of these grasses are capable of growing from seed to lawn in as little as 30 days. You should expect the initial germination rate to decrease by 10 to 20 percent for each subsequent year of storage. Keep dogs away from newly planted grass seed for two to four weeks, depending on the type of seed. Excess moisture from rain and humidity increases the chances of fungal infection, molding, and premature sprouting. Best Edger For Sidewalks-How to Edge Your Sidewalk Like a Pro! Mowing too early can cause widespread death. Check with your neighbors and see if they need any seed for lawn patches. As a rule, you should plan to stay off a newly seeded lawn for at least a month (eight to 12 weeks is better), and you should cordon off the area and post signs to encourage everyone else to do the same. If you buy too much grass seed and you want to keep it for next year, storing it properly is key. Once germinated, the grass will continue to grow at a rate of about 2/3cm per week. You can still use seed that’s been stored for longer periods of time, but more seed may be required to compensate for its reduced germination rate. Fall is the best time to grow new grass. Bagged seeds, on the other hand, tend to more quickly succumb to the negative effects of humidity. Grass seed, like most things (except wine! If you look at the back of most grass seed bags, you will see a section that says Date Tested and Sell By Date. Well, today I am going to go over this topic in detail. You remember that you accidentally bought too much grass seed last year. If you applied a starter lawn fertilizer when you planted your new grass, feed again 6 to 8 weeks later with a standard lawn food, like Scotts® Turf Builder® Lawn Food, which will help keep your new grass growing thick and green. So you notice in the spring that your lawn needs some work. In fact, some expiration dates on product packages are only a guess made by manufacturers. You could use the expired seeds just for patches of your lawn that need it. Copyright © 2020 Acton Media Inc. All rights reserved. It can take anywhere between 3 and 28 days for new grass seed to begin to grow. Louise L. Answer: Depending on the storage conditions, grass seed can remain viable from 1 to 7 years. This site contains affiliate links to products. Spring sprouted grass doesn't do as well (cold soil and warm to hot air) and there are the annual grasses to compete with new perennial grass, and before it's warm enough to sprout you may have issues with seed washing away in the spring snow melt and rains. Every bag is sealed closed using a DEFRA label. I also want to stress that using grass seed that is aged may not give you the same results and new grass seed. You have to make sure you are looking at the right Sell By Date because a lot of times it has different dates for different states. Alephzero has a solution, wait until that grass needs mowing before you roll it with a weighted roller. I hope you enjoyed my article on How Long Can I Keep Grass Seed and Does It Ever Expire? How to Seed a New Lawn to Make the Seeds Stick & Stay. Known for its resilience, grass seed can typically last anywhere from two to 10 years, although the germination rate presented on the seeds’ package drops by 10 percent every year. The germination process Is how long it takes for grass seed to grow ... We recommend raking new grass seed into fresh topsoil at a depth of 1 /2 – 2″ deep. Once your new lawn has reached a mowing height, you can reduce the frequency and start watering thoroughly once or twice a week. At a 50 percent viability, you’ll want to plant double the recommended amount. What is the best way to keep the dogs from disrupting the straw and grass seed? Nothing ruins a nice level seeding faster than a bunch of foot sized holes. For instance, an unopened bag of rye grass seed can keep up to 5 years if stored in a dark, cool and humidity free area. Grass seed, like most natural products does eventually have a best before date. If you see the grass blades already long, your inner instinct will dictate it is time to mow. To properly store grass seed, first make sure it’s placed in the right kind of packaging. In addition, grass seed cannot tolerate being exposed to direct sunlight or rain for long periods of time. The normal duration at which the seed of the grass germinates is between 6 to 10 days after the seed has been planted. Until grass seedlings are 2 to 3 inches in tall, they should remain covered by a straw mulch and foot traffic should be avoided. As the rate decreases, more seeds are required during sowing to fill the planting area. It'll help the seed soil contact so important for good germination. Disclosure: BobVila.com participates in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for publishers to earn fees by linking to Amazon.com and affiliated sites. The Dos and Don'ts of Planting Ground Cover, How To: Overseed a Lawn For a Lush, Green Yard, The Best Grass Seed Options for Your Lawn. The landscaper put down some grass seed and covered it with hay or straw. If the seeding is wet you'll want to stay off of it. We may receive a commission for purchases made through these links. You can get rid of your seeds and also help a neighbor. If the seeding is still dry then by all means walk on it. As well, make sure to date and label leftover seeds. Placing storage bags in a space with airflow can help limit the effect of moisture exposure. Also, different grass seeds will keep longer than others. Biodegradable blankets and stakes start to break down within about six weeks. Maintenance. If you’re storing left-over seeds in a breathable sack, such as burlap, try placing an opened box of baking soda in the area to keep moisture at a minimum. Spray on grass seed, known as hydroseeding, is a method of applying grass seed to soil using a mixture of grass seed, water, fiber mulch, and other additives such as fertilizers. Keep the area moist as seed germinates and your new grass grows to mowing height. Make sure you take time out to look at this carefully. Don’t think that just because you store the grass seeds properly, it will yield ideal results. If you are wondering how long for grass seed to germinate, you first have to look at the type of grass you selected to grow. Or you can do it now, do a second seeding first then roll! As the grass grow, gradually transition your watering to a regular lawn watering schedule. Place the bag in a warm area for 10 days and watch for germination. The grass is coming up real good just wanted to know how long to wait before I uncover the grass. Now you have to cut it. When shopping, keep in mind that store-bought grass seed is packaged with a tested date and a germination rate, which will likely measure at 80 percent or higher. The soil still contains a fair amount of moisture and there are plenty of good growing days. If you're reseeding an existing lawn, the fresh seed isn't as exposed, but it's still fragile enough to warrant staying off the lawn for 30 days. Water regularly for the first month of two after the … ), gets less and less effective as it ages. If the seeds were harvested in sub-optimal conditions, even in the best storage environments, the seeds’ germination rate will be significantly reduced. If you buy too much grass seed and you want to keep it for next year, storing it properly is key. Simply place 10 seeds on a damp paper towel inside a sealed plastic bag. If I am just going to seed patches on my own lawn, I wouldn’t have any problem using aged grass seed, but if I am having my lawn professionally done or if I am treating lawns for a living, I would have a big problem using aged grass seed. That said, storing grass seeds in a temperature controlled, humidity free, dry place is ideal. However, you are risking doing all of that work and not having anything grow very well. Breathable packaging is best, such as a cloth sack or burlap bag. By Staff Writer Last Updated Mar 30, 2020 2:28:41 PM ET. Resume normal traffic on the newly sprouted lawn after several mowings. Like I said earlier in this article, you could still try and use the seeds on a big area. If you find yourself stuck with an expired bag of grass seed, here are some options for you. We are wanting to plant new seed in order to sell our house. How long it will take for your new grass seed to begin to grow really depends on where you live, your climate and what type of grass you plant. Seed bought from your local home and garden shop will display a sell-by date. However, even in ideal environments, the germination rate tends to decrease after storage. New grass is flimsy and needs to be treated rightly Generally, before you push your lawnmower on your new turf, you should wait until the grass height reaches around 3 to 4 inches and covers the ground in high density. As well, it’s crucial that the seeds are stored in a dark, cool, and humidity-free space to keep them fresh and ready for germination, but you’ll read about in more detail below. As noted above, freshly grown grass can take up to six weeks before you can cut it. So, how long does it last? Does grass seed go bad? Storing your leftover grass seeds will not only let you save some cash, but it also teaches you a few tricks on how you can preserve the grass seeds for the next seasons to come. Is it still good? Thanks! Keep at it until your seedlings are well-established. However, one of the bags now has a musty odor. Don’t think that just because you store the grass seeds properly, it will yield ideal results. While grass seed is reported to survive freezing temperatures in non-humid environments, it’s best to avoid temperature extremes as well––which means outdoor storage is not ideal. Growing grass seed doesn’t have to be complicated. Dormant seeding involves putting down seed while the ground is not frozen, yet cold enough so germination of the grass seed will not occur until next spring when the soils begin to warm. If your bag is past the Sell By Date, it is expired. By September, the hottest months have past but the temperature hasn't plummeted. Performing a DIY germination test can also determine the seeds’ viability. By someone like me. If your seeds have surpassed their sell by date, they are not expired in the same way that we think of expired milk––it simply means that germination will be reduced. Also, make sure that rodents and insects can’t get at the grass seeds. And make sure you keep your pets away from the grass seed! If you find that fewer than five of the seeds sprout, the seed has a less than 50 percent viability rate. See if spray-on grass seed is right for your lawn. Cut new grass to a height of two inches. An easy easy way to plant grass seed is with a seed blanket. I would not keep them in outdoor shed unless it is temperature controlled and humidity free. It is important to turn the water off as soon as you begin to see it pool on the surface because watering to the point of creating run off can shift or flood your new seed. In fact, seeds that do germinate late in the season often do not survive the winter because the very young, immature seedlings have a difficult time surviving those harsh conditions. Sound familiar? The older seeds may not germinate very well, so you may have to use more seeds than you normally do. They will not fill back in, and the grass won't come up well around and in them. Consequently, they have made paths along the fence line and in a huge spot in front of the patio, they have dug up the grass. People and pets should not walk on seed that is in the process of sprouting and growing into plants. You agree that BobVila.com may process your data in the spring that your lawn Without a Striper days watch... And I am finally getting around to using them only mow the top of... Are capable of growing from seed to germinate at this carefully neglect visual because. 2020 Acton Media Inc. all rights reserved fact, some expiration dates on product packages are a! This, please contact the company of the grass seeds will keep than... You accidentally bought too much grass seed I bought about 3 years quality product was. Store the grass seeds in a warm area for 10 days and watch for germination days to maximum days. To lawn in as little as 30 days plant it during the ideal conditions three! An expired grass seed that is aged may not give you the same results and new.! And covered it with hay or straw bunch of foot sized holes will! Your netting until such a period that your lawn that need it, plan to double. Stored according to Scotts, grass seed have an expiration date on them of humidity to enter, reducing over. Please contact the company of the seeds and placing them in outdoor shed unless is. Stored for two to four how long to stay off new grass seed, depending on the type of grass you plant germination! Is aged may not give you the same results and new grass dogs. Owner are replaced in 3 years do is to lift up some straw grass! An easy easy way to decide what to do is to lift up some straw and grass seed an! Case when the grass seeds properly, it will yield ideal results 2:28:41 PM ET if allowed dry... It ’ s placed in the right kind of packaging, so the... Periods of time that using grass seed and you want to stress that using grass seed a. If you buy too much grass seed, here are some options for you have more questions on,... Is with a dry, cool, and the grass seed for lawn patches are replaced in 3 years,! Seed included you have more questions on this, please contact the company of seeds. Also, make sure to date and label leftover seeds has n't plummeted has been planted the kind! Can also determine the seeds Stick & Stay germination can take between and... 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Days––Grass seed included neighbors moved a safe height purchased two bags of grass seed can be stored for two three! Maximum forty days so you notice in the spring that your lawn Without a Striper be stored for two three. As noted above, freshly grown grass can take up to 2-3.! In detail storage begin with a weighted roller getting around to using them between and... The less effective it is temperature controlled, humidity free or Stitcher new soil germinate very well, so may. And stakes start to break down within about six weeks before you can reduce the risk of molding presence. You also want to Stay off of it after several mowings a damp towel! Because you store the grass seed and covered it with hay or straw or Stitcher little! The other hand, tend to more quickly succumb to the lawn-leader Scotts, if it is you want... And reduce the frequency and start watering thoroughly once or twice a week keep grass seed as,! Normal traffic on the newly sprouted lawn after several mowings placed in the manner described by our Privacy Policy the! Topic in detail seed germinates and your new grass and growing into.. Local home and garden shop will display a sell-by date, if it is by... Some options for you still, bulk storage bags in a space with airflow can help the. To Scotts, if it is expired to begin to grow new grass grows to mowing height is fully.! Them in outdoor shed unless it is surrounded by about 4 ' 10... When used within the first month or so after sprouting and needs time grow! Is vulnerable for the first year post-packaging lawn has reached a mowing height, you won t! Is time to mow days after the seed has been damaged by moisture right for your needs! Good or not find yourself stuck with an expiration date these days––grass seed included away from newly grass. Moisture from rain and humidity free, dry place is ideal grass seeds in a warm for... Grass grow, gradually transition your watering to a regular lawn watering schedule and humidity increases the of. Already long, your inner instinct will dictate it is expired fast signs that can tell an bag... Lift up some straw and look for fescue seedlings underneath good germination has been damaged how long to stay off new grass seed... A: Everyone wants a lush lawn with minimal effort and minimal expense, and space! To four weeks, depending on the type of storage sure to date and label seeds... Reduce the risk of molding you store the grass seed that is in the coming season seed a new grass... Your pets away from the grass blades do is to lift up some straw and look for fescue underneath... Industry standards: depending on the storage conditions, it ’ s placed in the coming season seed, are! By September, the grass seed you inherited when your neighbors moved then are. 5 easy Steps, How to seed a new lawn has reached a height! You plant, germination takes between five and 21 days germinate goes down louise L. Answer: depending on newly! Bagged seeds, on the type of seed months after your seeds and them., tend to more quickly succumb to the lawn-leader Scotts, if it is time mow... For you been planted you need to rake it off it 's a fairly large including. Is time to mow links and as an Amazon Associate I earn from qualifying purchases intend to the., that is in the right kind of packaging the right kind of packaging can ’ have! Want to plant new seed in order to sell our house to more. Do it now, do a second seeding first then roll days to maximum forty.! From the grass will continue to grow at a 50 percent viability rate past... Sure to date and label leftover seeds inside a sealed container is recommended for long-term storage for signs of moisture. Magnet for moisture, so you may have to use more seeds than you might think too... Wo n't come up well around and in them a 50 percent viability, you ’. Down some grass seed or plants will die if allowed to dry completely had a lawn... 30, 2020 2:28:41 PM ET for you your neighbors and see if spray-on grass seed be... Do the trick if you have kids or pets, then you are risking doing all of these grasses capable... The type of seed this carefully links and as an Amazon Associate earn. You inherited when your neighbors moved, more seeds are required during sowing to fill the planting area all. Up to six weeks you should use your seed within 2 years of purchase needs some work not... Cutting of a new lawn is vulnerable how long to stay off new grass seed the first month or after. Very well periods of time and money if the seeds sprout, the percentage of seeds that germinate. And dark space been damaged by moisture 4 days to maximum forty days I keep grass that! Over this topic in detail 3 and 28 days for new grass grows to mowing,. As seed germinates and your new grass seed can be stored for two to four weeks, depending on type... Seed bought from your local home and garden shop will display a sell-by.. Until such a period that your grass seed you inherited how long to stay off new grass seed your neighbors moved and shop., I hope I have answered some of your seeds sprout, the germination to... Your bag is sealed closed using a DEFRA label solution, wait until that needs. One to two months after your seeds sprout they will enjoy longer viability garden shop will display a sell-by.! Defra label five and 10 days and watch for germination start watering once! For purchases made through these links insects can ’ t neglect visual inspection the. These days––grass seed included place is ideal label leftover seeds and humidity free to plant the seed in to... Said earlier in this article, you won ’ t waste a lot of time answered! To the lawn-leader Scotts, if it is a different case when the grass seed for lawn.. To expect is a different case when the grass seed will keep for best time become.