I have pampas grass that is totally taken over

+13
Answered
I want to kill it but I have not been successful. Any ideas short of digging it up?
  14 answers
  • Janet Pizaro Janet Pizaro on Feb 09, 2016
    Unfortunately the only way to get rid of the grass is to cut it down with a chain saw as low as you can.Then you have have to use chemicals to get to the roots to kill them off. If you do not wish to control the grass with chemicals you can try to smother it out with heavy black plastic or a lot of newspaper,however it will be a long process until all the roots die off.
    • DORLIS DORLIS on Feb 09, 2016
      @Janet Pizaro I like this idea! Then when it is down close to the roots , try vinegar first with a bit of Dawn soap to make it adhere to the grass. Then it that does not work, go to a hardware or farm supply store, they have stronger stump or vine killers that will do the job. Just move any plants you want to keep, dig them up and move to a safe place, because if this stuff runs beyond the grass, it will kill everything it touches.
  • Chase Chase on Feb 09, 2016
    Cut it down and dig it up. Section it with sharp shovel first, then dig out sections. I don't favor herbicides due to negative effects on people.
  • Melanie Melanie on Feb 09, 2016
    Wear gloves! The blades of Pampas grass are surprisingly razor sharp. Without gloves, your hands and arms will have hundreds of thin paper cuts!
  • Betsy Rodgers Betsy Rodgers on Feb 09, 2016
    I had 8 very large pampas grass plants and used Roundup to get rid of them. I started spraying in the spring as they started grow and sprayed periodically whenever I saw a piece pop up. You have to check often for new growth and spray it. The next spring there was no sign of it.
  • Terryt Terryt on Feb 09, 2016
    Spray vinegar on it. It may take a second spray but it should do the trick and it is not poison. Just be careful not to spray on other plants you have around it.
  • Sue Sue on Feb 09, 2016
    Thanks everyone for your insight. I was recently told to put rock salt on it. Will give some of these ideas a try.
  • Karen Howard Karen Howard on Feb 09, 2016
    I'd suggest you consult a professional website like Proven Winners or P. Alan Smith.com, that way you won't regret taking someone else's advice. Just sayin...
  • Scratchycat Scratchycat on Feb 09, 2016
    Mix vinegar and salt together and spray on or pour on plant in spring. If you see new shoots, re-apply. Works for all kinds of weeds and grass.
  • KBM KBM on Feb 09, 2016
    If you want to plant something else there you will have to dig up the plants/roots. You also don't want use any herbicides/plant killer that will stay in the soil/surrounding area that will kill any new plants you put in there. If you do use an herbicide you may have to wait 1-2 years before putting new plants in that area. Why don't you ask your friends/family/acquaintances if they want some and let them dig them up? You can also offer them for free or low price on FB buy, sell, trade sites or in the classifieds for anyone who will dig them up. Then put in landscape cloth or dig up any remaining shoots to control them. There are alot of people out there who are looking for plants for their landscaping that are willing to dig up the unwanted plants of others.
  • Janet Pizaro Janet Pizaro on Feb 09, 2016
    Just a FYI although the salt and vinegar does work on weeds it may not be strong enough for the vast root systems of the grass. Another thought if there are existing plants around the pampers grass it will then kill that.
  • Shannon Shannon on Feb 09, 2016
    Round Up
  • Shannon Shannon on Feb 10, 2016
    Outlawing it would be fine with me, however it didn't appear in the question as an option already excluded so was offered as one way to kill the grass. No need for political agendas here, it is an answer to a question.
  • Arlene S. King Arlene S. King on Feb 11, 2016
    If there is a local Nursery that has a 'community board" - you could put a note on it "Free Pampas Grass" and see if there are any takers. On Facebook, my area has a "Garden Group" online -- and we swap and share everything from seeds to plants we don't want any more. Maybe you have one in your area?? Or you could start one.
  • AMY STABOLITO AMY STABOLITO on Oct 03, 2019

    Sue, after almost four years did you have any luck removing these? How did you take care of it and what was easiest way for you?

Your comment...