flower seeds from 2017 okay to plant?

Keosauqua, IA

I have flower seeds (zinnia's and morning glory) from 2017 - some from 2016. Do seeds expire?

Lynnwood, WA

Seeds do expire zinnias are said to last 5-6 years

There are seed viability charts online
Clear creek seeds has a good one but you will find many via google search

You can always do a germination test in a paper towel

Keosauqua, IA

This is very helpful and thank you very much for the resource (Clear Creek).
I'll try the germination test on the morning glory's. Should be fun!

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