Does anyone know....

[Ohiogal]

the best way to store unused plant seeds so that you can use them next year? Freeze them? Store in a cool dry place? etc.

Thanks in advance!

[Major Nikon]

1. Either way

Temperature and humidity changes should be avoided. Use a ziplock.

[NRaleighLiberal]

2. each type of plant's seeds have different duration of viability as well

I store tomato seeds in coin envelopes in my office - get excellent germination up to about 14 years - things drop off drastically at age 16.

Peppers and eggplants have much shorter duration - 5 or 6 years then big drop off.

Each flower type will have a different duration.

Freezing will definitely prolong life - but keep the moisture out - and let them come to room temp before opening whatever container you use so that moisture doesn't rush in.