Asked on Sep 30, 2017

Daughter had a bunch of huge thistles and can't get rid of them,

PJ WiseCarol PrimTom Rhodes

Answered

3 answers
  • Tom Rhodes
    on Sep 30, 2017

    Thistles have a large underground root system and simply pulling them out will only cause them to regrow. I got rid of mine by spraying them with Roundup and repeating it over and over every time I saw any sort of regrowth. Took a couple of months.
  • Carol Prim
    on Sep 30, 2017

    Boil water and pour directly onto them
  • PJ Wise
    on Oct 1, 2017

    PLEASE, PLEASE do not use RoundUp; it is a known carcinogen that is toxic to the earth. I am a strong proponent of using boiling water to control noxious weeds. Pour boiling water over the lower part of the plant. Once the soil has cooled, you should be able to pull the plants with the assistance of a hand spade or hand fork. You need to stay on top of the weeds and remove them quickly before they grow too large.
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