How do I get rid of daylilys?

by Rose Smith

Answered

I planted daylilys on both sides of our walkway and they are now out of control. I have already dug them up and split them once before. The root system is huge. Today I dug up every other one and noticed that there are still roots left. Is there any way to kill off these roots so they don't grow again next year in the spots that I dug up.

Thanks,

Rose

3 answers

Roberta Rhodes on Oct 31, 2018

Vinegar or salt water on the base of each plant and around new shoots.

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- See 2 previous
- Rose Smith on Nov 01, 2018
  
  Will try this first before Roundup. Do I mix the salt & vinegar? Is it straight vinegar or do I mix with water?
  
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- Roberta Rhodes on Nov 01, 2018
  
  Hi Rose. I would try about a fifty fifty solution of white Vinegar and water on the lilies. If you can, make that hot or freshly boiled water. If they don’t start looking peked do another application, and cover the areas with plastic. A bonus: If the ground gets soft you might be able to dig up the clumps. I understand these are really hard to get rid of in an easy way. Use salt water about 1 cup per gallon as a second treatment. I would cut off the tops of all the lilies before I started any application which will help things along.
  
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- Rose Smith on Nov 01, 2018
  
  Thanks Roberta, I had already cut the plants down for the winter. I will be applying the solution into the holes of the plants that I already dug up where I can see roots that were left behind. Hopefully this will make it a bit easier to reach everything. They are certainly invasive plants and not easy to dig up.
  
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Jan Loehr on Oct 31, 2018

There is always Roundup liquid you can pour in the ground to kill the underground roots....nothing survives this stuff...they must be there a very long time to establish themselves so firmly under the ground....try it...

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- Rose Smith on Nov 01, 2018
  
  Thanks Jan
  
  Helpful
Lynn Sorrell on Oct 31, 2018

Salt wrecks the soil. Nothing grows. Great for weeds in gravel tho'.The plants you left will spread to the empty areas so best way is too let them begin to sprout and where you do not want them growing either spray new shoots with 1/2whitevinegar1/2straight lemon juice mixed or if it's really bad when the new ones begin to emerge spray them with Round-up it goes thru leaves then down into roots killing plant.Becareful using it,use protection do not do it on windy day only directly spray each leaf holding sprayer nozzle on the leaves.Round-up is a chemical & all chemicals aren't good but Daylilies are extremely hard to get rid of unless you can find every single tuber and they spread & live indefinitely. Some chemicals do serve a purpose if used sparingly, safely and if needed, like if you have poison ivy,oak,sumac which are also hard to remove.

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- Rose Smith on Nov 01, 2018
  
  Thanks Lynn
  
  Helpful

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