Posted by Sarah on September 17th 2012
When is the best time to spray my lawn for crabgrass??
The preferred time to spray for crabgrass in MN is from May to Mid-September, when the plants are actively growing. April is the best time to apply a crabgrass granular Pre-Emergent. Crabgrass thrives when temperatures are hot and cool-season lawn grasses are least competitive. Still, they have a tough time invading a healthy lawn, so now would be the best time to apply a fall fertilizer to boost the health of your existing lawn and give nutrients to your soil.