First mow of the season typically lands the first week of April in Fredericksburg, once tall fescue has pushed past 3.5 inches and soil temperature is solidly in the 50s. What cadence you mow at from that point — weekly, biweekly, or something else — makes more difference than most homeowners realize.

The 1/3 rule (again)

Per VCE’s lawn chapter: never remove more than 1/3 of the leaf blade in a single cut. If you’re maintaining at 3.5 inches, you cut when the grass hits 5.25. That’s the whole rule.

In April and May, tall fescue in central Virginia grows 3–6 inches per week. You cannot maintain the 1/3 rule on a biweekly cadence during peak growth — the math doesn’t work. By day 14, you’re looking at 8+ inches, and cutting to 3.5 means removing more than half the leaf blade at once. That stresses the plant, exposes bare soil to sunlight (hello, crabgrass), and leaves ugly brown tips.

Weekly: spring + early summer (April 1 through about June 20)

During the spring flush, weekly is the only cadence that follows the 1/3 rule without mowing-induced stress. A weekly cut at 3.5–4 inches keeps the grass dense, shades out crabgrass, and sets the canopy up to handle July heat.

Biweekly: mid-June through August

Once growth slows (heat and drought kick in), many lawns can drop to biweekly without breaking the 1/3 rule. Our standard service plan actually flexes with growth rate — if your grass is barely growing in a drought week, we skip that visit (you don’t get charged for it) and pick up the next week.

Biweekly year-round?

Only if you’re OK with your lawn looking “kept” rather than “sharp.” The 25% per-visit premium on biweekly reflects the extra work: longer cuts, bagging or double-passing, more string trimming. Over a full season, biweekly is 15–20% cheaper than weekly, but the lawn quality drops noticeably. Most customers who start biweekly in April switch to weekly by May once they see the difference on their neighbors’ yards.

What happens when you skip a week in May

One skipped week in peak growing season = a hayfield by day 10. Catching back up means mowing in multiple passes (cut high, wait 3 days, cut lower), double the bag fill, and stressed turf for 2 weeks. The $40 you saved costs you a month of recovery.

How the cadence shows in your invoice

• Weekly mowing plan: Baseline per-visit rate — 30 visits over the mid-March through mid-November season.
• Biweekly plan: Baseline rate + 25% per visit, 15–18 visits.
• Monthly plan: Baseline + 75% per visit, 8 visits — not recommended in April/May unless you’re fine with scruffy results between visits.
• One-time or “as-needed”: We’ll do it, but you call us, not the other way around.

First-mow readiness checklist

1. Clear the lawn of debris (toys, branches, seed pods)
2. Move any landscape edging or decorative stones to their proper position
3. Mark sprinkler heads, shallow dog fences, or buried irrigation with landscape flags
4. Confirm gate access if the backyard is fenced

That’s it. We handle everything else. Weekly rates start at $40 for small lawns — grab your real number at hibaxum.com/request-quote.

Sources

• Virginia Cooperative Extension — Gardener Handbook, Chapter 11: Lawns