Four to six weeks
People also ask
When can I plant grass seed after applying weed and feed?
If you must sow grass seed after applying weed and feed, wait at least four to six weeks before doing so to ensure the herbicide won’t prevent the seeds from sprouting.
How long after weed and feed can I mow my lawn?
It is also recommended to wait a few days after applying weed and feed to mow your lawn again. Mowing the lawn instantly after weed and feed application does no good to your lawn. The granules of weed and feed product get collected in the mower bag, and don鈥檛 have any time to work before the mower picks them up.
Does weed and Feed Kill grass seed?
The herbicide will weaken the grass as well as the weeds and the fertilizer will strengthen the weeds as well as the grass. When applying seed over a weed and feed application, remember that some weed and feeds can prevent grass seeds from growing.
How long does it take for weed and feed to work?
The pre-emergent herbicides in the product will hinder the growth of grass and prevent it from germinating. You should wait for three to four weeks after applying weed and feed before you reseed the bare spots in your lawn. Watering the lawn after weed and feed application washes out the granules before they have a chance to work.