When to Start Mowing Your Lawn in the Rogue Valley

Every spring around late February I start getting the same question from folks here in Medford: "Is it time to start mowing yet?" The honest answer is — probably not yet, but soon. Here in the Rogue Valley our spring is unpredictable. We can have a 65° afternoon in mid-February followed by a hard freeze the next week, and that whiplash makes timing your first mow trickier than people realize.

This is a quick, local guide to getting that first cut right — written for homeowners in Medford, Central Point, Phoenix, and the rest of the Rogue Valley.

The 50/50 Rule

Forget the calendar. The most reliable signal that it's time to start mowing is when daytime temperatures are consistently above 50°F for about a week, and your grass has actively started growing again. Soil temperatures matter even more than air temperatures — cool-season grasses (which is what most of us have around here) start growing when soil hits roughly 50°F.

In a typical Rogue Valley year, that means:

• Late March to early April in lower elevations — Medford proper, downtown Central Point, central Phoenix.
• Mid-April or later for yards up the hills toward east Medford, the foothills off Hillcrest, or the higher parts of Central Point.

If we have an unusually warm February (which happens), things can move up by 1–2 weeks. If we have a wet, cold March, you might wait until late April. Watch the grass, not the calendar.

Why Mowing Too Early Hurts Your Lawn

I see this every year — a warm Saturday hits in early March and somebody fires up the mower for the first time. Three problems with that:

1. The ground is usually still saturated. Our valley sits in a basin and holds winter moisture longer than people think. Mowing on wet soil compacts it, which chokes out roots and invites moss.
2. The grass isn't actively growing yet. Cutting dormant or barely-waking grass stresses it and slows the green-up.
3. You expose tender new growth to a frost. Late frosts in the valley happen well into April. A freshly cut lawn is more vulnerable than a slightly shaggy one.

How to Do the First Cut Right

When you do start, your first mow of the year should be a little different from a regular summer cut:

1. Set the mower a notch higher than usual

For most Rogue Valley lawns I aim for the top edge of the mower's height settings for the first cut — usually somewhere around 3 to 3.5 inches. Cutting too short on a stressed lawn is one of the fastest ways to make it look thin and brown all summer.

2. Sharpen the blade first

A dull blade tears the grass instead of slicing it, leaving frayed brown tips. Most homeowners go a year or more without sharpening. If you can't remember when you last did it, do it now.

3. Skip the bag (within reason)

Mulching the first cut puts nitrogen back into the soil right when the lawn needs it. Just don't mulch if the clippings are wet and clumping — those mats kill the grass underneath.

4. Don't trim or edge yet

The lawn edges around driveways and walkways are the last to wake up. Wait another two or three weeks for the edges to fill in before you go after them with a string trimmer.

What About a Late Spring Cleanup?

Before that first mow, most yards I work on need a quick cleanup pass. Walnut leaves, pine needles, branches that came down in the winter wind, and the random plastic that blew over from the neighbor's recycling bin. Get all of that off the lawn before the mower goes anywhere near it. A clean lawn cuts cleaner and dries out faster.

The Short Version

• Wait until daytime temps are consistently above 50°F for a week and the grass is visibly growing.
• For most of Medford, Central Point, and Phoenix, that means late March to early April.
• Higher elevations and shaded yards can be 2 weeks later.
• First cut goes a little higher than your normal summer height.
• Sharpen the blade. Mulch the clippings. Skip the edging for now.

If you'd rather not deal with any of this, that's why I'm here. I'll watch the conditions, time your first cut right, and keep your yard looking sharp from spring through fall.