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Horseradish woes

We planted Horseradish in our raised vegetable bed 2 years ago.  It has gone rampant.  We tried to dig it out a year ago, but it has come back more vigorously.  We have now dug down one metre, into solid clay, and the roots are still going straight down.

We did spray with Glyphosate a couple of weeks ago, and the leaves all died down, but I have a feeling that deep in the roots it is still alive.  We have cut the stalk down to one metre below ground.  

Is there anything we can spray on the exposed part of the root/stalk? It's our veggie patch, so must not be toxic.  

I am also considering putting a barrier/membrane down, but I think it will to be very solid.  Help??!!


  • ThankthecatThankthecat North DevonPosts: 411

    When I told my dad I was planting some horseradish last year he laughed and said, "Well I hope you REALLY like horseradish, 'cos you're going to have it for a long time." I planted two roots and at the end of the season meticulously dug them up and froze them in sections, each about the right size for a portion of horseradish sauce. Early this spring I saw two or three new horseradish babies appearing and dug them right up and since then - no sign of it. Perhaps I just got lucky, and it doesn't like my soil overmuch...

  • WelshonionWelshonion Posts: 3,114

    Quite frankly I think the garden centres, and catalogues that sell horseradish are irresponsible; unless people are really aware of how the plants can spread!

  • The user and all related content has been deleted.
  • WelshonionWelshonion Posts: 3,114

    Oh I agree, Caveat Emptor.  So how is it that the OP planted it.  Not everybody is as wise as Phillipa.

  • Invicta2Invicta2 Posts: 663

    I grow mine in a big plant pot, only way to ensure it does not spread all over the place.

  • I love fresh horse radish sauce, I didn't know you could get too much image

  • CloggieCloggie Posts: 1,353

    I planted one in a long tom (those tall, thin terracotta pots) and was quite happy with how it was going but wanted to move the pot a couple of months later to find that the root had gone through the hole in the bottom and into the gravel path (terrible soil but did it care? no!).  It took a fair bit of strength to snap off that blighter and the "soil" (almost concrete) was too hard to dig so I hit it with a mattock and duly crushed, it didn't come back.

    They're tough.

  • CloggieCloggie Posts: 1,353

    the smell was eyewatering image

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