How Often ToMow.

If you moved here from somewhere with a shorter growing season, the first fall usually comes as a surprise — the grass is still growing well after you’d normally have stopped mowing somewhere drier. Oregon’s mild, wet climate keeps lawns active longer than a lot of homeowners plan for.

A longer active season means more visits over a full year compared to a drier climate, which is worth factoring in if you’re budgeting for recurring service rather than one-off visits. We break down the full pricing picture in our guide to lawn care costs in Portland.

The mild, wet spring that defines this region is exactly what grass wants, which is why lawns here can outpace a homeowner's mowing schedule in April and May in a way they wouldn't in a drier climate. Growth doesn't shut down cleanly in fall either — it slows, but a mild autumn can keep a lawn growing well past when most people have stopped thinking about it.

Cutting height matters alongside frequency. Scalping a lawn short to buy an extra week between mows tends to backfire, stressing the grass and opening space for moss and weeds. Oregon State University's Extension Service publishes region-specific lawn guidance worth reading if you want to go deeper on grass types and seasonal care in the Pacific Northwest.