How long do dry ferts last? any best befor?

[aibo82]

Hi

I have been keeping potassium phosphate and nitrate in zip lock bags there 2 years old thet safe to use? would save me buying anymore!

Thanks

 

[Dolly Sprint 16v]

Hi

As long as you have kept the powders dry there should be no problems with them.

See attached thread shortcut: viewtopic.php?f=11&t=4959

Regards
Paul.