Mary
Mary
  • Hometalker
Asked on May 14, 2017

Can anyone tell me how to KILL lily of the valley?

Swa15854753CindyHkr23748636
+12

Answered

11 answers
  • Janet Pizaro
    on May 14, 2017

    Where is the plant?
    • Mary
      on May 27, 2017

      They are growing under a dogwood tree - I've tried to dig them up but they keep coming back!
  • Shoshana
    on May 15, 2017

    Start by digging up as much of the plant and its rhizomes as possible with a rake and then your hands. Then cover the area where your lily of the valley used to be with cardboard or layers of newspaper. Hold it down with something heavy (rocks, cinder block) and leave that there for about a season to smother the remaining seeds or rhizomes that may try to grow back. Good luck!
    • Mary
      on May 27, 2017

      Thank you! I've tried to dig them up, but they have spread everywhere - will try your suggestion after we mow them down
  • Loretta
    on May 15, 2017

    I would love to know. I think they are totally industructable.
  • Bre22491928
    on May 15, 2017

    Pour boiling water on it, that will cook the rhizomes!
  • John
    on May 15, 2017

    roundup concentrate....but it will take years before anything will grow there again
    • Mary
      on May 27, 2017

      I've tried pre-mixed roundup - did not work - will try the concentrate - if that doesn't work, I'll try smothering them with cardboard as Shoshana suggested.
  • Mfbandit769
    on May 15, 2017

    Dig it up...guaranteed!
  • Nancy Turner
    on May 27, 2017

    No round up, you may affect the tree. The only way I could do it was to carefully dig them up, even deeper than you think, a lot of the ones I dug up were attached to each other by roots. When I dug them up deep, they never came back. That way you no you are getting all the roots.
  • John
    on May 28, 2017

    the rhizomes should be dug up first....these are nuisance plants that spread....one rhizome can produce a lot of plants...they are also deadly to animals or children who eat them....glad they can't grow in my zone....there should be a phone number for the manufacturer...call them first and see what ratio they recommend....I spray fence lines to keep prickley pear cactus from growing....mine is only lightly diluted because cactus need a stronger solution
  • Hkr23748636
    on May 28, 2017

    Roundup but will kill everything. The plants have bulbs so could be dug up with lots of effort !
  • Cindy
    on May 28, 2017

    I heard you say that you mow them down. That's a mistake. That is like pruning them. I would go with the boiling water but then sprinkle salt on them. Use a whole box of salt. That usually works to kill just about anything plus it's all natural and inexpensive. Good luck.
    • Mary
      on May 28, 2017

      Did not now mowing them would cause them to spread! We did that a few years ago and then sprayed them with pre-mixed Roundup. They came back with vengeance!
  • Swa15854753
    on May 28, 2017

    Roundup. If close to other plants, brush it on. It'll kill darn near anything. May have to reappl. The stuff is pretty hardy.
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