Nutsedge weeds grow during the spring and summer and are perennial, meaning they come back year after year.
Crabgrass, is primarily an 'opportunistic' plant and will usually grow in thin or bare areas of your lawn, but can also crowd out good grasses that are weakened. Sometimes by scalping the lawn when mowing too short, can cuase insect and disease activity or other problems.
Clover grows in nitrogen poor soil, and absorbs nitrogen from the air, so it doesn't need it from the soil. Grass does need nitrogen from the soil, so clover is a red flag letting you know your lawn is starving.
September through October is the perfect time to seed a new lawn or aerate and over seed an existing one. The variation of warm days and cool nights with the right amount of moisture in the ground creates the ideal growing conditions for grass seed. Those pesky weeds are slow to germinate during this time of year, so the grass seed can thrive and strengthen before winter arrives.
Benefits of Aeration and Overseeding:
· Aeration is one of the best things you can do for your lawn. It keeps your grass growing thicker.
· Overseeding introduces new grass seed to fill in those weak and bare areas that need special attention and also builds resistance to insect damage and turf disease.