If you're using grass seed to overseed your lawn instead of Scotts® Turf Builder® Thick’R Lawn™, it's a good idea to rake in a thin, 0.25-inch layer of enriched soil over your lawn to help the seed settle in. 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. A packet of vegetable seeds may look dry, brittle, and lifeless, but in many cases, seeds are very much alive. If you find yourself stuck with an expired bag of grass seed, here are some options for you. While some may wonder whether or not it is safe to plant seeds that have passed their expiration dates, we know that planting expired seeds will not impact the outcome of the final plant grown from that seed. But you may well wonder if that old grass seed is still viable, or if it has gone bad with age. The best time to plant grass seed is when the weather is doing what you want it to. Always clean the room before doing the fan test Make sure you do this in a clean room, so if you good seeds happen to blow all over your room, you can sweep them back up without all the dirt on the floor. However, each season, growers with limited space may find themselves left with unused garden seeds. You can extend its viability by keeping it out of a hot garage or shed and storing it indoors where it is cool. Reseed with new grass seed, if the seed used is expired and there is time before the first frost arrives. To test the viability from a seed packet, simply remove about ten seeds from the packet. Never start your fan too close to your seeds and on the highest speed setting. One study showed laboratory-sealed cannabis seeds were still viable after 19 years. Depending on how it has been kept and how it is planted, grass seed can remain viable for years. If your seed has been stored in a cool, dry, dark place in a breathable container (ideally a paper bag) then it should be fine. You do not buy just any seeds. More importantly, why do we need seed expiration dates? A grass seed germination temperature chart, readily available online, can be helpful. Grass seeds need to be kept moist in order to germinate. How do you know which grass seed to use? Seed Packet Information: Interpreting The Seed Packet Directions, Growing Rice At Home: Learn How To Grow Rice, Signs Of Rice Blast Disease: Learn About Rice Blast Treatment, Christmas Tree Allergen Info: Am I Allergic To My Christmas Tree, Seniors And Houseplants: Indoor Senior Gardening Ideas, Mason Jar Snow Globe Ideas – Creating Snow Globe From Jars, Shinko Asian Pear Info: Learn About Shinko Pear Tree Growing And Uses, Fosteriana Tulip Plants: Varieties Of Emperor Fosteriana Tulips, Caraway Winter Care – Caraway Cold Hardiness In The Garden, Star Apple Info – How To Grow A Cainito Fruit Tree, Evergreen Favorite: Container Grown Olive Trees, Evergreens In My Heart – Three Must Have Evergreen Trees, Decisions, Decisions: Choosing An Evergreen In The Landscape, Spruce Trees For Landscaping - Spruce It Up With Evergreens. How to Store Grass Seed. Grass seed, like any other plant seed, has a finite shelf life.Grass seed stored for more than one year gradually has fewer seeds that would sprout, or germinate, if planted. There are two easy tests you can take to … How long seeds remain viable depends on the type of seed and how well it is stored. Learn tips for creating your most beautiful (and bountiful) garden ever. Too little seed leaves lawns thin or bare. The only problem you may have with old seed is getting rats in it. Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. Place the damp paper towel into a zip-lock bag. When properly stored in a cool, dry place, seed's shelf life can be extended. But a short while after you water grass seed for the first time, it starts needing oxygen to continue sustaining itself and its rapid growth. The answer, of course, is "Maybe." Growing a crop of your favorite vegetables can be an absolute delight, as can herbs and flowers for the garden. Read on to find out. After ten days, check the germination of the seed. Inside each plant seed is the embryo of a future plant. Whether this is your first lawn or you're the neighborhood expert, take some advice from turf professionals and get to know your grasses and your soil before you start seeding. Still, bulk storage bags will do the trick if you intend to plant the seed in the coming season. Although seeds do not technically “go bad,” expiration dates are used on seed packaging as a measure of the likelihood that the seeds will be viable. separate boxes to properly place and meter each of the three seed types. The older seeds may not germinate very well, so you may have to use more seeds than you normally do. When wondering, “will expired seeds grow,” gardeners can conduct a simple germination test. So, will expired seeds grow? For smaller areas, you can spread the seed by hand, but use a spreader for larger areas. The factors influencing seed viability include: There is no harm in trying to use some old grass seed for top seeding or reseeding, but you should expect there to be a lower germination rate than you would enjoy with fresh turfgrass seed. Age – All seeds stay viable for at least a year and most will be viable for two years. The shelf life of lawn grass seed depends mainly on the strength and health of the grass plants ( Poaceae ) that produced the seed and how the seed was stored after it was harvested. To properly store grass seed, first make sure it’s placed in the right kind of packaging. Are Old Seeds Still Good? Warm-season grasses should be planted in the spring, when the soil is warm and there is plenty of moisture. Breathable packaging is best, such as a cloth sack or burlap bag. Can Old Vegetable and Flower Seeds Still Be Planted? If your grass seed dries out after it has started to sprout, it will die. If the seed you purchased this year is retested seed harvested in 2001, you might not get very good germination next year. Leave the bag at room temperature for ten days. For example, it may have a “packed for” date, which is typically when the seeds were packed, not necessarily when they were harvested. For the future, your new grass seed will keep best if you store it in a tightly sealed plastic bag or container so it cannot absorb moisture. When wondering, “will expired seeds grow,” gardeners can conduct a simple germination test. The date on the seed bag should be no farther backdated than nine months from the date you planted the grass seed. Keep the soil moist. I have narrowed down to 2 of them, Heat Tolerant Blue Mix and High Traffic Mix. It’s nice to know what to look for, but in the end the best test is just to put it in soil. While proper storage conditions will help to prolong the lifespan of seeds, the viability of many types of seeds will begin to decline regardless. Too much grass seed causes undue competition for resources such as light, water and nutrients, and grass seedlings struggle as a result. Remember that there’s a need to make some practical choices even for a simple thing like this. The viability of stored seeds of any kind are greatly influenced by storage conditions, and unfortunately, the ideal conditions for seed storage are very often exactly the opposite of how homeowners store grass seed. Seed is only harvested 1 time a year (JUNE) that seed is then put into bags and sold in the Fall. The seeding equipment should provide proper seed depth, uniform seeding rate, and good seed to soil contact. However, seeds do not remain alive forever. Breathable materials will allow good air flow and reduce the risk of molding. The cooler the storage temperature and the dryer the relative humidity (RH), the longer your seeds will remain viable. --Don in Mt. With this in mind, one may be left to wonder then, when do old seeds expire? Type – The type of seed can affect how long a seed stays viable. For this reason, many growers choose to store plant seeds in airtight jars in places such as refrigerators or in cellars or basements. When you’re planting a garden, you want to make sure you’re not wasting time, energy, and garden space with bad seeds. If the weather is hot and dry, you will need to mist with water more frequently. It's best to plant cool-season grasses in the late summer or early fall, 45 days before first frost. Moisten a paper towel and place the seeds into it. To test the viability from a seed packet, simply remove about ten seeds from the packet. Plants grown from expired seed packets will grow to produce healthy and fruitful harvests, just as their younger counterparts. 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