Kat K.
Kat K.
LawnStarter HQ

How to tell if grass Is too long for a standard mow

Hey crew — Ever show up to a yard and think, “This one’s going to be rough”? When grass gets too tall, it takes longer, clogs up your mower, and leaves behind a mess. Here’s how to quickly figure out if it qualifies for a Long Grass Fee (LGF) — and what to do next.



📏 The Quick Check: Over 9 Inches Tall

If the grass is 9 inches or taller, it's too long for a standard mow — and you’ll qualify for a Long Grass Fee.

What’s 9 inches look like?
Think of the height of a push mower deck or about the length from your wrist to your fingertips. If the grass reaches that high or higher, it’s time to take action.
💡 Pro Note: A Long Grass report can only be filed once every 30 days 

💵 Payout Rules (Know What You’ll Get Paid For)

9 to 15 inches tall

  • You’ll get paid extra automatically — just let us know the grass is long and mow + mulch as usual.

  • Snap some before and after photos, but no customer approval is needed.

Over 15 inches

  • Hold off until the customer approves the LGF quote.

  • Take clear photos showing the height.

  • Once approved: mow, mulch, and clean up clippings — that’s part of the extra fee.

⚙️ Pro Tips

  • Don’t mow first if it looks over 15 inches — wait for approval.

  • Use something for scale in your photo: your boot, the trimmer, or a yardstick.

  • No tool for scale? Mow one strip and snap a photo — the contrast makes the grass height easy to see.

  • Clean your deck after mowing long grass — buildup is no joke.

  • If it’s borderline, play it safe and flag it — it helps avoid disputes later.

What do you use to measure long grass on the job?
Ever get surprised by how fast a yard grows? Drop your best tall grass photo or story below — let’s see who’s tackled the wildest lawn.

Under 9 inches:


9-15 inches:

Over 15 inches: