Is mahonia invasive?

VerdunVerdun Posts: 23,348

Just replied to a thread about mahonias and surprised to read they can be invasive.  Anybody experienced this?  

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Posts

  • BerghillBerghill Posts: 2,826

    Not in my garden. In fact we lost 2 of them in the hard winter a couple of years back. The surviving ones are still just single stem shrubs after 18 years.

  • FairygirlFairygirl Posts: 19,728

    Not found them to be invasive here Verd. Perhaps it depends on soil type. Wet and clay up here which normally suits them too. image

  • DovefromaboveDovefromabove Central Norfolk UKPosts: 43,665

    They will grow larger and spread a bit - as do most plants if they're happy where they are and we treat them nicely - if you heave them untended for 20 years in a good spot they might form a small thicket - I wouldn't call that invasive - in my humble opinion that's just 'growing'.

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    No-one knows if you've done your housework, but everyone knows if you've done your gardening !
  • FairygirlFairygirl Posts: 19,728

    Dove - that reminds me of what my Mum used to say about the privet hedge. She said to me one day 'your Dad  cuts it but - I don't know, it just keeps growing again.'  I had to laugh.  ' Mum - that's kind of what plants are designed to do'..... imageimage

  • AtillaAtilla Posts: 1,493

    I thought they only pupped when the roots are disturbed. So if you want it to spread, keep digging around their roots. My Mahonia Charity is in deep shade and looks great - in other gardens in full sun they look terrible.

  • FairygirlFairygirl Posts: 19,728

    You're right blairs - they really suffer in too much sun don't they? image

  • Flora rosaFlora rosa Posts: 260

    Hi, just googled it - very nice plant ! I need one for a very shady spot, and this just fits the bill then. Will it grow in a pot ?  

  • AtillaAtilla Posts: 1,493

    That is right Fairygirl, they go red and spindly with very few leaves in full sun. Mine in deep shade is deep green and glossy and looks like a different plant.

    They can grow in pots Flora Rosa as long as you keep them watered.

  • FairygirlFairygirl Posts: 19,728

    There's a huge one where I work - north facing area but quite open so it gets quite a bit of sun. Loads of other shade loving planting around it - Camellias, Skimmias, Rhodies, Pieris etc.. Lovely deep green as you say and it flowers like nothing else in winter. 

  • AtillaAtilla Posts: 1,493
    Fairygirl wrote (see)

    it flowers like nothing else in winter. 

    They have no scent for me apart from a faint honey smell.  Some people cannot smell Freesia (or so am told) for me it is Mahonia.

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