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Invasive plants to avoid

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  • ObelixxObelixx Posts: 30,049

    I've been given some of the smaller alchemilla too so have to assume it has come from seedlings.  We'll see.

    I'd rather have miscanthus zebrinus than bamboo as I find the ones I like with coloured stems you can strip bare to show off are always the most expensive and the rest are very ordinary and usually thugs.

    I have hakonechloa aurea which is spreading nicely in a moist bed that only gets sun in summer.  Happy for that to go mad as it's lovely, especially in a breeze.

    Vendée - 20kms from Atlantic coast.
    "The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
    Plato
  • PalustrisPalustris Posts: 4,307

    Alchemilla alpina, erythropoda and faroensis I have grown and whilst they will spread from seed they are not as invasive as mollis.

    Another real spreading thug is Allium ostrowskianum which comes in different names, like A. farreri and oreophilum. No matter what the name it is a  SPREADER.

  • I'd add verbena bonariensis to the list. A great plant in many ways but seeds itself everywhere.

  • JMC2JMC2 Posts: 5

    I spent 5 years a long time ago getting rid of a ground-cover hypericum - it was extremely persistent. As to Japanese anemones, I am still paying the price for planting just one plant some years ago - it is even trying to come up through concrete. Visiting Wisley a few days ago, I was amazed to see huge swathes of Japanese anemones in the borders near the new conservatory. They looked attractive at the time but how on earth will they be controlled? As to golden rod, I not only suffer from seedlings from the next-door neighbour's garden, but worse still, an RHS expert told me that golden rod is an eelworm host. He explained that the near-death of a 10 ft square of phloxes my side of the fence is the result of the proximity of the golden rod planting the other side of the fence.

  • right now my biggest problem are nasturtiums - they are every where and growing like triffids.

    @Christopher - how do you get your alstormerias to take over? mine have grown too tall this year, fallen over and then the snails have had a feild day. normally i get flowers from April to October/November - aftera first flush of flowers they are really struggling to regrowm

  • LilylouiseLilylouise Posts: 1,013

    I love Lamiums but there is one - not sure of it's name - that is on a mission to take over the garden image

    Pam x

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