Why is my grass getting bright lime green patches?
Bright green patches appear in lawns when certain fast-growing grass types or invasive weeds take over a section of the yard. This stark color difference makes the lawn look uneven and disrupts its uniform appearance.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Applying glyphosate to kill the weed patchesDid this help you?
- 2Treating the lawn with pre-emergent herbicide in the fallDid this help you?
- 3Learning to live with the patchesDid this help you?
- 4Trying to pull up the grass and check the rootsDid this help you?
- 5cutting the yard at the top settings due to uneven ground from erosionDid this help you?
- 6going 2-3 weeks without mowing due to the heatDid this help you?
- 7Applying multiple nitrogen applications to blend the colors together.Did this help you?
- 8Comparing blade thickness and specific color shades to distinguish grass from weeds.Did this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“my grass, it's starting to get these patches of lime green.”source ↗
“started noticing parts of my lawn turning a lighter green the last 2 days.”source ↗
“All the lighter green spots I've noticed have thinner blades than the other spots some I'm wondering if it's new tillers popping up or an issue that's popped up.”source ↗
“I get that too in one corner of the yard. It appears like regular grass, just... like bright green in color.”source ↗
“Trying to figure out if these lime green grasses are poa triv or not... they're not growing in circular patches, it's a lot more...random. Any help or insight is greatly appreciated!”source ↗
“I had that issue in my newly renovated lawn last year. A couple spots were lighter green than the rest for a part of this year.”source ↗
“it has a yellowish green color, like a type of neon/lime green and I feel like it looks cheap, especially since I still have some tall fescue growing next to it when the house was finished.”source ↗
Where this came up
People with this problem also raised
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- 11Are yellow patches in newly installed sod dead or a fungus?
- 15How do I identify strange white patches and spiraled growths on my lawn?
- 3How to fix bald spots in a high traffic lawn