[Pistopb78]

Brand new to the site. I got a little impatient last week and overseeded my lawn with a liberal amount of perennial ryegrass (Pennington NW mix) and a thin layer of compost top dressing. So after seeding we had a few days in the 60's and even a 75* day before temps dropped back to chilly highs in 50's and 30's lows. I doubt that soil ever had a chance to reach germination temps. We had one quick frost this morning which I believe is our last. My question is what are the affects of seeding a few weeks too early in spring and a potential frost prior to seeds sprouting and/or germination? Also how long will the seeds last if soil temps are slow to rise?

 

[Sinclair]

If the seeds were moist, and you had a few days 60-75, there's a possibility of some germination, and those ones could be killed by frost.

Any seeds that did not germinate will germinate when you get warmer temps. You essentially did a dormant seeding.

It'll be fine. :thumbup:

 

[Colonel K0rn]

From listening and reading about other cool season grass owners and operators, when you do a spring overseeding, a realistic overseeding in the Spring will be about 30%, and that's on the high side. Best time to do it is in the fall. Not all the seed is lost, it just won't germinate until the weather turns cooler. Try again when the weather gets cooler, and when you aerate in the fall.

 

[Pistopb78]

If the seeds were moist, and you had a few days 60-75, there's a possibility of some germination, and those ones could be killed by frost.

Any seeds that did not germinate will germinate when you get warmer temps. You essentially did a dormant seeding.

It'll be fine. :thumbup:

Thanks and we'll see. I feel at this point the water from my sprinklers is warmer than this spring chill we're having. At least there's been good amount of sun! Maybe I should've run my sprinklers through that quick frost :lol: