"Frank" wrote:
On Mar 26, 4:58 pm, Steveo wrote:
"dooo42" wrote:
i live in rhode island and last year crabgrass took over about a 1/3
of my lawn. i have seen so many different times to put down
crabgrass preventer my head is spinning. what is the best time?

thanks

While the forsythia is in bloom.

That's my advice too but along my asphalt drive, which gets quite
warm, crabgrass seed will sprout earlier so you might treat such areas
a little sooner.

Frank

Hi Frank

True, he could do it tomorrow for that matter. Does he have a soil
thermometer handy? The forsythia in n ohio is barely leafing out as of
today.

It's one of those rule of thumbs that follows the soil temperature. If the
OP uses dimension it probably isn't even worth talking about.