answersLogoWhite

0

Grass seed DOES expire. As it ages, it loses the small amount of moisture is does contain, and loses the ability to germinate. It can also rot, grow mold, or otherwise destroy its ability to grow if left in areas too hot and arid, or too damp. The rate at which seed expires does vary by seed (grass) type... but generally speaking, after the first season, it will substantially lose its ability to germinate the 2nd year and so on - taking more time to grow - which, of course, gives the seed more time to rot instead. Your best bet is to use all the seed you have in a single growing season - even re-seed an area if you have some left to help thicken what you have.

User Avatar

Wiki User

16y ago

What else can I help you with?