@melanie@compost
I usually only send seeds that were harvested in the past year or less. Some seeds will keep several years, decades or even millennia someplace cool & dry (I.e. a seed vault). The store packets have expiration dates so they put out fresh seed every year (stores used to keep stuff on the shelves for years until it sold). There shouldn't be germination issues with "fresh" (under a year old) seed unless it is handled incorrectly.
compost