Hi,

i have been collecting seeds from my irises (not sure which species i have) each year for 3 years now. I store them in a plastic container in the shed waiting for the day that i get time to start trying to see if i can get them to germinate.

My question is: when - if ever - do they get too old to germinate? For example, can you get a 5 yr old seed to germinate?

thanks