Using Old Seeds - Knowledgebase Question

Waterford, NY
Avatar for cassandral1
Question by cassandral1
May 14, 2001
I have a bunch of seed packets but some of the dates are 1-20 years old can they still be used or am I waisting my time? And how cold is too cold for tomato plants outside? It has been in the low 40's.

Answer from NGA
May 14, 2001
To some extent the viability of the seeds depends on what they are and to some extent how old they are and to some extent how they have been stored. Storage at a steady cool temperature and under dry conditions (such as in the refrigerator in a closed airtight container) for example is better than sitting on a shelf out in the shed. Some seeds are long lived to about five years or so (tomatoes, peppers) and others such as corn and lettuce may not last two years. If you are willing to experiment a little it might be fun to see if any of the 20 year old seeds will germinate, but I wouldn't count on them. You can test the seeds by placing a sample on a damp paper towel and wrapping that in plastic to keep it damp. Set it in a warm bright location out of direct sun and see if any swell and germinate. Use the results as an indicator for the remaining seeds.

Tomato plants should be conditioned or acclimated gradually to the out of doors over the period of a week or so. Once all danger of frost has passed and nights are in the mid forties, the soil should be warm enough to plant them out successfully.

You must be signed in before you can post questions or answers. Click here to join!

« Return to the Garden Knowledgebase Homepage

Member Login:

( No account? Join now! )

Today's site banner is by Zoia and is called "Pansy Bucket"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.