Healthy soil and sustainable growing

[Debbie Mcdonald <belynor@sbcglobal.net>]

If you use older seeds, are the resultant plants inferior? I have some ten 
year old seeds I thought I could share with strangers if need be? or use some 
myself but they were not kept air tight or cold, just house temp, not hot 
ever. They've been dry also. I know not all seeds keep as long as some 
others. These are heirloom open pollinated varieties.