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Is mahonia invasive?

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  • Flora rosaFlora rosa Posts: 262

    Great, know what my next purchase will be image  Bought a rose shrub yesterday on strength of reading all the posts about roses hehe. Have had one in the sunken patio but I keep tending it (inherited it from previous owners and we've been here ten years now!) and it's just a long stem with a few leaves. I said would never get another but have succumbed.  

  • DovefromaboveDovefromabove Posts: 88,129

    For me Googling found a variety known in the US as Leatherleaf Mahonia which is invasive in the US - don't think the garden cultivars commonly grown in the UK are like that.


    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





  • There are several species of mahonia, Mahonia media and Mahonia japonica both form an upright shrub, and are the varieties most commonly used in gardens. Mahonia aquifolium is a shorter, spreading shrub which does send up shoots all around, and can be a bit more troublesome. Also called Oregon Grape.

  • Tropical SamTropical Sam Posts: 1,488
    Potsandpansies wrote (see)

    There are several species of mahonia, Mahonia media and Mahonia japonica both form an upright shrub, and are the varieties most commonly used in gardens. Mahonia aquifolium is a shorter, spreading shrub which does send up shoots all around, and can be a bit more troublesome. Also called Oregon Grape.

    Spot on!

    Mahonia japonica is what most of us have - the US Mahonia (a decent evergreen shrub but Holly Osmanthus gives the same foliage effect with more elan) is a different species and is the invasive one.

  • nutcutletnutcutlet Posts: 27,442

    the mahonia Verdun refers at the beginning of the thread proved to be aquifoliium not japonica when the photo was posted.



    In the sticks near Peterborough
  • little-annlittle-ann Posts: 878

    mahonia dosnt mind being cut back quit hard

  • Flora rosaFlora rosa Posts: 262
    philippa smith2 wrote (see)

    Flora rosa............"said would never get another....."........Kiss of death..........once you even start thinking about it, you KNOW you are going to get one come what mayimage

    LOL - yes, quite right, for some reason it happens to me all the time hehe image

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