How to Store Grass Seeds in Winter So They’re Ready for Spring

Did you know the viability of grass seed depends heavily on how it’s stored over the winter? If you’re wondering how to store grass seeds in the winter, knowing improper storage can cause seeds to lose their ability to germinate just when your turf is ready for spring lawn care services. When grass seed is stored correctly, it can be used the following spring in Calgary as part of your seasonal lawn maintenance plan.

Generally speaking, grass seed stored in cool, dry conditions over the winter will maintain its viability the longest. If you’re saving seed for spring, following proper storage guidelines helps ensure strong germination when it’s time to start lawn care services. And if you ever need expert advice or professional support, Greener Grass is always here to help with seasonal planning and reliable lawn care services in Calgary.

Where To Store Your Seeds Over The Winter

Often, homeowners will store their grass seed in a garage or shed without realizing that this can expose it to excess humidity or freezing temperatures. When it comes to how to store grass seeds in winter, the best option is an air-tight container kept in a basement or another cool, dry area inside your home, where temperature and moisture levels stay more consistent.

Seed viability relies on a few different factors, including:

Temperature – The ideal temperature for most seeds is above freezing but under 15 degrees Celsius. In Calgary, where we experience cold winters and hot summers, a garage or shed may not allow seeds to hold their viability for very long.
Moisture – Too much moisture negatively affects seed viability. Always store your seeds in an air-tight container or plastic bag so that they cannot absorb moisture. In general, the cooler and dryer the storage area is, the longer your seeds will remain viable.
Humidity – Seed viability declines rapidly when exposed to humid climates, further highlighting the importance of storing seeds in an area that is cool and dry.

How To Know If Your Seeds Are Still Viable

Some grass seeds can last for several years, while others have a much shorter shelf life. The good news is that proper storage can help extend how long your seeds stay usable. When spring rolls around and you’re getting ready for lawn care services, there are a couple of simple tests you can do to check whether your seeds are still viable before putting them down.

The Water Test

One easy way to check seed viability is with a quick water test. Place your seeds in a container of water and let them sit for about 15 minutes. When you’re preparing for lawn care services, viable seeds will usually sink, while seeds that float are less likely to sprout and can be set aside.

The Germination Test

We recommend waiting to do this test closer to the time of planting, so any seeds that sprout can be placed into your garden immediately. To do the germination test:

Take your seeds and place them in a row on top of a damp paper towel.
Fold the paper towel and seal it in a zip-up plastic bag.
Place this plastic bag in a warm location away from direct sunlight, ideally on top of the refrigerator.
Check once a day and carefully mist the paper towel with water if it requires more moisture, being careful not to overwater.

Your seeds should sprout in a few days, depending on the specific germination time of your seed species.

How Long Does Grass Seed Viability Last?

Grass seeds last between 10-18 months from the testing date when stored under ideal conditions. Keep in mind that every seed is different, and results vary.

With proper lawn care services and seasonal maintenance in Calgary, your grass seeds can sprout and help your garden thrive. Our services also include the following:

Lawn Aerating
Lawn Power Raking
Lawn Overseeding
Soil Enhancer

Our friendly, knowledgeable staff can assist you with your residential lawn, acreage or commercial property. At Greener Grass, our attention to customer service will ensure you receive excellent results promptly, professionally and efficiently.