When to Plant Grass Seed in Idaho

Weeds sprouting along a concrete edge in a lawn area during warm season.

For most Idaho lawns, the best time to sow grass seed is late summer into early fall, while the soil is still warm and frost is weeks away.

When to Dethatch a Lawn in Idaho

Weeds sprouting along a concrete edge in a lawn area during warm season.

Most Idaho lawns never need dethatching. Before you rent a machine, cut a wedge out of the turf and measure the spongy brown layer under the green.

How High to Mow a Lawn in Idaho

Weeds sprouting along a concrete edge in a lawn area during warm season.

Mow tall fescue at 3 to 3.5 inches, Kentucky bluegrass at 2 to 3, perennial ryegrass at 1.5 to 2.5, and zoysiagrass or bermudagrass at 1 to 2.

When to Aerate a Lawn in Minnesota

Weeds sprouting along a concrete edge in a lawn area during warm season.

Cool-season Minnesota lawns are aerated in fall while the grass is still growing, using a core aerator on moist soil, with the job finished ahead of the first freeze.