Ask a Gardener - Frozen Flower Seeds

I accidently left my pansy and other flower seeds outside during the winter. They were left in the package and inside a freezer bag to keep fresh. Do you think these will still be okay to plant? - Martha Martha, Yes, your seeds should be okay to plant. Many seeds can go through cold or freezing temperatures and be just fine. A lot of annuals, like pansies, re-sprout from seeds that have sat through freezing weather all winter long. But if you want to be sure, there are some easy tests you can use to check your seeds’ viability. Sink or Swim One common seed testing method is to put your seeds in a bowl of water. Let them sit for about 10 to 15 minutes. The seeds that sink to the bottom are usually denser with nutrients and are good candidates for planting. The ones that float to the top are filled with air and probably won't sprout. There’s some debate about this method and it’s not 100% accurate, but it’s fast and easy and gives you a pretty good idea of your seeds vitality. It usually works best with medium to large seeds since some seeds are so little, they’ll float no matter what.

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