When to Aerate a Lawn in Alberta

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

Aerate an Alberta lawn in late summer into early fall, while the grass is still growing and well ahead of the average first fall frost, which falls on…

When to Dethatch a Lawn in Alaska

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

Most Alaska lawns never need dethatching. If a spade-cut wedge shows more than 0.75 inch of brown, spongy layer, the right window in Anchorage is spring…

When to Aerate a Lawn in Alaska

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

In Alaska, aerate a cool-season lawn in late summer to early fall, while the grass is still green and growing, and finish before the first fall frost.

When to Dethatch a Lawn in Alabama

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

Most Alabama lawns never need dethatching. Cut a wedge of turf, and if the brown, spongy layer measures under 0.5 inch, put the rake away.