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LSUperior
Member since Aug 2009
1236 posts

Is this Nut Grass (Coco Grass) and what herbicide to kill it?

This weed has sprouted up all over our front flowerbeds. I'll kill it with Glyphosate and it just comes back in like 2-3 weeks. I've pulled it and it just comes back. Its between all of our flowers/plants, therefore I'm hesitant on what to use that wouldn't kill the plants to, but at this point...I dont care lol. Would Sedgehammer kill it for good? Do I need a surfactant added? Any advice is appreciated! I'm just about ready to dig up the entire flowerbed down 3-4" and start new again.



Quatrepot
LSU Fan
Member since Jun 2023
3534 posts

re: Is this Nut Grass (Coco Grass) and what herbicide to kill it?
It You s nutsedge and “Permit” will kill it. So will Sedgehammer.


LSUperior
Member since Aug 2009
1236 posts

re: Is this Nut Grass (Coco Grass) and what herbicide to kill it?
quote:

It You s nutsedge and “Permit” will kill it. So will Sedgehammer.


Is Permit or Sedgehammer safe for surrounding plants? Like can I just spray everything?


LemmyLives
LSU Fan
Texas
Member since Mar 2019
5004 posts

re: Is this Nut Grass (Coco Grass) and what herbicide to kill it?
Nutsedge.

Roundup won't keep it dead. The only thing I've found that would keep it dead was Dismiss. You're going to panic at the price, but one bottle will last you for years.

I backed up to a lake with a lot of wind, and I had to keep a sprayer with the Dismiss ready to roll. I had to spray once every week or two, somewhere. Usually not in the beds, just the grass, but you have to nip it in the bud ASAP. There were people in the hood (expensive arse houses) whose yards were completely taken over by Sedge.

Nutsedge can DIAF.


LSUperior
Member since Aug 2009
1236 posts

re: Is this Nut Grass (Coco Grass) and what herbicide to kill it?
quote:

Roundup won't keep it dead. The only thing I've found that would keep it dead was Dismiss. You're going to panic at the price, but one bottle will last you for years.

I backed up to a lake with a lot of wind, and I had to keep a sprayer with the Dismiss ready to roll. I had to spray once every week or two, somewhere. Usually not in the beds, just the grass, but you have to nip it in the bud ASAP. There were people in the hood (expensive arse houses) whose yards were completely taken over by Sedge.

Nutsedge can DIAF.


Sounds like it's a huge PITA...I'll definitely checkout Dismiss! At this point, I'll try anything to get this stuff dead and out of the flowerbeds for good.


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Quatrepot
LSU Fan
Member since Jun 2023
3534 posts

re: Is this Nut Grass (Coco Grass) and what herbicide to kill it?
quote:

Is Permit or Sedgehammer safe for surrounding plants? Like can I just spray everything?

I hate to say what I’m not 100% sure but I spray both very haphazardly in flower beds and find them to be VERY selective and not bother other plants. Ronk or someone who knows more can chime in.


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bayoubengals88
Wisconsin Fan
LA
Member since Sep 2007
18280 posts
 Online 

re: Is this Nut Grass (Coco Grass) and what herbicide to kill it?
I really don’t get the hate for Nutsedge. It’s grassy and not hideous like VBW or Chamber Bitter. Those make me want to vomit.

I guess I just haven’t experienced how it can takeover.


Puffoluffagus
LSU Fan
Savannah, GA
Member since Feb 2009
5947 posts

re: Is this Nut Grass (Coco Grass) and what herbicide to kill it?
I wouldn't mind nutsedge if it didn't grow 3x taller than the grass around 1 day after you mowed your lawn.


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CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
5119 posts

re: Is this Nut Grass (Coco Grass) and what herbicide to kill it?
Yes it is nutsedge and you can use Sedgehammer to control it. You should add surfactant as stated on the product label. Be persistence, and patient, it will require additional applications as new plants emerge from the nutlets/tubers.


s14suspense
USA Fan
Baton Rouge
Member since Mar 2007
14645 posts
 Online 

re: Is this Nut Grass (Coco Grass) and what herbicide to kill it?
You can get the little packets of sedgehammer+ on Amazon that have Surfactant in them. Don’t try to pull them up. Only makes them worse.


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ronk
Member since Jan 2015
5625 posts
 Online 

re: Is this Nut Grass (Coco Grass) and what herbicide to kill it?
I would not spray it on surrounding plants. Some will be effected and some it wouldn’t bother.


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