I would add compost and then plant something else. If you aren’t ready to plant your replacement plants, consider planting a cover crop.
CowboysFTWs
Weed barrier, stones, plants in pots, and spray with weed killer once and while.
Ok-Bug4328
“Ground clear”.
Has killed every hardy vine I have thrown it at.
Read the instructions on how soon you might be able to plant something else.
Mysterious-Panda964
I would use a torch, then cover with cardboard and a tarp until spring, it will help kill the roots
craigrpeters
If you left the roots in the ground it will almost for sure come back. Most ornamental grasses have fairly shallow roots probably going down 8-10 inches. I’d dig those roots out. You want to do this anyway to make the bed suitable for new plants.
Acreage26
Dig out the roots and plant something equally obstinate, like lily of the valley or day lily. Once they start spreading, they even choke out weeds.
canadaishilarious
Cover with cardboard/tarp/etc for a long time. You could use heavy poison but what’s the point? You want to plant stuff there not make a toxic waste site.
msmaynards
I did a terrible job removing 3 decades old deergrasses last winter as not enough rain came late and ground was hard. 2 haven’t come back, the other needs more grubbing out. You just need to get out the crowns and they are gone. Don’t make the mistake I did, get the ground nice and damp so it’s easier to get through and use a mattock or shovel to get the crowns out. Crowns on those old medium sized grasses are actually very close to the surface of the soil since they’d been there so long.
WMoore_89
If you sifted the top 6-8″ of soil. Id say with 1000% certainty youd atleast have 10 pop up next season. Now, if you did that/similar. You can bake it. Or suffocate it…
Baking them, by covering the area with a plastic sheet (garbage bag, tarp, roll of plastic w.e.) or suffocating by adding 6-8″ thick of hardwood mulch (it’ll decompose and in 2 years would be ~4″)
isthatjacketmargiela
If you want to “be sure” you dig out 1′ and export that soil off site. You said BE SURE.
AstroRiker
Boil a kettle of water, and then water the area to kill all the plants
OpinionatedOcelotYo
Seek not ‘once and for all.’ Seek good happy practice. Practice the practice.
13 Comments
I would add compost and then plant something else. If you aren’t ready to plant your replacement plants, consider planting a cover crop.
Weed barrier, stones, plants in pots, and spray with weed killer once and while.
“Ground clear”.
Has killed every hardy vine I have thrown it at.
Read the instructions on how soon you might be able to plant something else.
I would use a torch, then cover with cardboard and a tarp until spring, it will help kill the roots
If you left the roots in the ground it will almost for sure come back. Most ornamental grasses have fairly shallow roots probably going down 8-10 inches. I’d dig those roots out. You want to do this anyway to make the bed suitable for new plants.
Dig out the roots and plant something equally obstinate, like lily of the valley or day lily. Once they start spreading, they even choke out weeds.
Cover with cardboard/tarp/etc for a long time. You could use heavy poison but what’s the point? You want to plant stuff there not make a toxic waste site.
I did a terrible job removing 3 decades old deergrasses last winter as not enough rain came late and ground was hard. 2 haven’t come back, the other needs more grubbing out. You just need to get out the crowns and they are gone. Don’t make the mistake I did, get the ground nice and damp so it’s easier to get through and use a mattock or shovel to get the crowns out. Crowns on those old medium sized grasses are actually very close to the surface of the soil since they’d been there so long.
If you sifted the top 6-8″ of soil. Id say with 1000% certainty youd atleast have 10 pop up next season. Now, if you did that/similar. You can bake it. Or suffocate it…
Baking them, by covering the area with a plastic sheet (garbage bag, tarp, roll of plastic w.e.) or suffocating by adding 6-8″ thick of hardwood mulch (it’ll decompose and in 2 years would be ~4″)
If you want to “be sure” you dig out 1′ and export that soil off site. You said BE SURE.
Boil a kettle of water, and then water the area to kill all the plants
Seek not ‘once and for all.’ Seek good happy practice. Practice the practice.
Concrete