Wait until the grass is brown and dry...why take a chance? The round up
affects the grass by increasing the rate of evapotranspiration - this needs
sunlight to have maximum effect.

--
Mike LaMana, MS
Heartwood Consulting Services, LLC
Toms River, NJ
www.HeartwoodConsulting.net



"Pkevinf" wrote in message
om...
I really try not to use chemicals but I used Round Up on a 20 by 40
foot bed to have done by the 4th of July (per wife)... It's been down
for 5 days and the grass looks "light" green, not brown. May I still
lay 6 in. of compost/topsoil to start my bed tomorrow? The last
thing I'd want is grass growing thru.

P.S. No rain, mid 70's days, low 60's nights

Thanks!

P.P.S. Most times I just dig or lay newspaper