When to Apply Crabgrass Preventer: Soil Temperature and Timing
Crabgrass preventer only works if it's down before the seeds sprout. Use soil temperature, forsythia and these regional dates to get the timing right.
Tag: pre-emergent
Pre-Emergent vs Post-Emergent Herbicides: What Each Does and When to Use It
One works before weeds appear and the other after. Picking the wrong one wastes money, and a pre-emergent can stop your new grass seed too.