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Euphorbia Griffithii Fireglow or Dixter?

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  • AlchemistAlchemist Posts: 273
    I grow it in a 20l pot and it has survived. I place it in a border with rudbeckia but truth be told, I am not a big fan of it. Also It hasn’t grown much over the last 2 years, suspect it’s root bound or doesn't like this pot. 

    On on the same not is Martinii any less invasive? 
  • NollieNollie Posts: 7,529
    Not sure, Alchemist, have just planted out some E. Blackbird, which I think is a Martinii x strain, so could let you know in a year’s time! Quite an unusual colour combination, haven’t decided whether I like it yet. For a lower growing cushiony one, E. polychroma Bonfire has amazing fiery colours. Mine are straggly titchy things at the moment, but are already colouring up.
    Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
  • LoxleyLoxley Posts: 5,698
    I don't think x martinii runs at the root.
    "What is hateful to you, do not do to your neighbour". 
  • AlchemistAlchemist Posts: 273
    Thanks Nollie and Willdb. I’m paranoid about planting invasive plants. Good to know if may not run. 
  • NollieNollie Posts: 7,529
    Found this on RHS Euphorbia plant trials:

    https://www.rhs.org.uk/plants/pdfs/EuphorbiaGrowerGuide_ForDownload.pdf

    Says E x Martini Helen Robinson ‘can be invasive in certain situations’ so avoid that one @Alchemist.

    Also says the trial of Dixter was rescinded because it was ‘ineffective in winter’ and ‘has been superseded’ - but doesn’t say what superseded it! 
    Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
  • MarlorenaMarlorena Posts: 8,705
    I think what has superseded it is something like Euphorbia x pasteurii, which is evergreen and has winter coloured foliage too.. and it's not invasive.. so much better all round.. but it will grow larger in a border.. mine potted is restricted..

    I think I bought this as Euphorbia martinii  ..it grew too big for the pot and I eventually removed it, but it was quite a sight for a few years.. needed too much watering too and got pot bound..

    Euphorbia martinii.. 


    Euphorbia x pasteurii…




    ...of course, it doesn't have those bright orange red flowers though..
    East Anglia, England
  • NollieNollie Posts: 7,529
    Beautiful euphorbias, @Marlorena, is that the Pasteurii browns seedling? I see in the RHS study they included Pasteurii John Phillips in the trial, which looks similar...

    I have got into euphorbias because I have half a dozen different ones growing wild in the woods and verges around me. I recently tried digging up a handsome specimen called Schillingii (looks like a small version of Pasteurii but don’t think it gets the reddish foliage) but it had a huge taproot. Think I got it all, but its looking a bit unhappy in my garden, so maybe didn’t like being moved...
    Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
  • MarlorenaMarlorena Posts: 8,705
    @Nollie .. yes that's the one I have.   The differences between these strains is very little apparently.. needs an expert eye to tell, so I'm not sure how John Phillips differs exactly..
    I don't know Schillingii, hope it recovers..
    East Anglia, England
  • AlchemistAlchemist Posts: 273
    Nollie said:
    Found this on RHS Euphorbia plant trials:

    https://www.rhs.org.uk/plants/pdfs/EuphorbiaGrowerGuide_ForDownload.pdf

    Says E x Martini Helen Robinson ‘can be invasive in certain situations’ so avoid that one @Alchemist.

    Also says the trial of Dixter was rescinded because it was ‘ineffective in winter’ and ‘has been superseded’ - but doesn’t say what superseded it!



    @Nollie thanks for the link. Really useful. 

    @marlorena can I ask if the euphorbia martini in your photo is in a sunken pot? Looks way too healthy and big for it. Also did you find it invasive in your garden?
  • MarlorenaMarlorena Posts: 8,705
    edited May 2019
    @Alchemist ... no, not in a sunken pot, just an ordinary glazed pot... I repotted it into a larger metal one after that, but eventually I felt it didn't suit my garden.. it just continues to bulk out, I wouldn't describe its habit as invasive..  a very beautiful plant if you like these.... just not my type of Euphorbia.. 
    East Anglia, England
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