M Major Tom Well-Known Member Mar 5, 2009 #1 How long dose pollen hold it's effectiveness before it dies? Thanks Tom
H howhi Active Member Mar 10, 2009 #3 Major Tom said: anyone???????????????????????????????? Click to expand... 6 months if you keep it in something like a film canister... If you freeze it it has been known to keep for 18months though
Major Tom said: anyone???????????????????????????????? Click to expand... 6 months if you keep it in something like a film canister... If you freeze it it has been known to keep for 18months though