How to Check if Old Seeds Will Still Grow 🌱

Found an old packet of seeds in your garden drawer? Before planting them all, there’s a quick way to see if they’re still worth using.

Try the Paper Towel Test

You only need:

• A few seeds
• A paper towel
• A small zip-top bag or container
• A little water

Moisten the paper towel, place the seeds inside, and fold it over them. Put the towel into a loosely closed bag or container and keep it somewhere warm.

Check it every day or two. Keep the towel slightly damp, but not soaking wet.

Give It a Few Days

Depending on the plant, seeds may start to sprout within several days to a couple of weeks.

If most of the seeds sprout, you can confidently plant the rest.

If only a few sprout, the seeds are still usable, but you may want to sow more than usual. If nothing happens after the expected germination period, the packet may simply be too old.

One Small Trick That Helps 🌿

Don’t test just one seed. Try 5–10 seeds instead.

For example, if 8 out of 10 seeds sprout, your approximate germination rate is 80%. That gives you a much better idea of how many seeds to plant.

This is especially handy for older seeds or packets that have been sitting around for a few seasons.

Store the Rest Better Next Time

Once you know your seeds are still good, keep unused packets somewhere cool, dry, and dark. A sealed container can also help protect them from moisture.

And it’s a good idea to write the year on seed packets when you buy or open them. A tiny note now can save you some guessing later. 🌱