Forum home Tools and techniques
This Forum will close on Wednesday 27 March, 2024. Please refer to the announcement on the Discussions page for further detail.

Pumice suppliers - soil improvement

123457

Posts

  • punkdocpunkdoc Posts: 15,039
    Just looked at their website, lots of smoke and mirrors.
    I thought water retention gels had long since been dismissed by most of the horticultural community.
    How can you lie there and think of England
    When you don't even know who's in the team

    S.Yorkshire/Derbyshire border
  • DovefromaboveDovefromabove Posts: 88,147
    edited September 2022
    I bought some water retention gel beads ... then I read this and other similar stuff, and I stopped using them ... 

    I mean, why would you put that stuff in your soil?  Isn't it bad enough that all the same stuff from disposable nappies is going into landfill ... we really should stop looking for short term solutions for everything ... 

    https://www.gardeningknowhow.com/special/containers/water-crystals-in-potting-soil.htm

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





  • McRazzMcRazz Posts: 440
    edited September 2022
    Loxley said:
    McRazz said:
    Hi OP,

    This thread went a bit mad so I haven't read it all, but if it hasn't been mentioned already we often get this product specified when working on sites with deficient soils. 

    https://www.terracottem.com/en

    My understanding is its an enriched volcanic mineral composition.

    GreenTech can supply it - Its best to call and ask their sales team for the best rates. The product would be Terracottem Universal. 

    https://www.green-tech.co.uk/

    Razz.

    Hmm, that product seems to basically be a combination of water retention gel and slow released fertiliser:



    Hi @loxley,

    I grabbed this from the official specification sheet;

    "SPECIFICATION SHEET
    The product is a physical soil conditioner designed to increase the water and nutrient 
    holding capacity of soils and growing media, increase plants' root development, growth and survival rate and reduce the need for watering by up to 50%. The product is a dry, free flowing, pow-dery-to-granular mixture of cross-linked hydroabsorbent polymers, growth precursors and volcanic rock enriched with soluble, slow release and synthetic nitrogen fertilizers. The product has an absorption capacity of a minimum of 4500 g H2O/100 g in distilled water using Method of Analysis CEN EN 13041 and more than 95% of the water contained in the polymers is plant available". 

    *Edit - Volcanic rock.................................................................. 49.75%
  • McRazzMcRazz Posts: 440
    punkdoc said:
    Just looked at their website, lots of smoke and mirrors.
    I thought water retention gels had long since been dismissed by most of the horticultural community.
    I wouldn't speak too soon.

    Broadleaf P4 is pretty much specified by all the leading landscape consultants and architects, including at least two un-named BBC/Chelsea FS favourite garden designers who we work with. 

    http://www.broadleafp4.com/


  • FireFire Posts: 19,096
    Some old timers on the forum are always down on water retention media and mycorrhizal fungi powder. It's a thing. 
  • Some of us are down on one  but not the other. 😊 

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





  • punkdocpunkdoc Posts: 15,039
    I resent that @Fire. Water retention gels are very environmentally unfriendly [ supposedly a concern of yours ] and have never been shown to have any benefit.
    I am unsure of the benefits of fungi powder. Whilst we know about the benefits of fungi, we don't know whether the fungi used will benefit a specific plant, in a specific location.

    Some posters on the forum latch onto any old trash from Utube videos, without any evidence of their benefits.
    How can you lie there and think of England
    When you don't even know who's in the team

    S.Yorkshire/Derbyshire border
  • LynLyn Posts: 23,190
    If Monty Don recommends it it must be right! 
    Gardening on the wild, windy west side of Dartmoor. 

  • McRazzMcRazz Posts: 440
    edited September 2022
    Whatever works for you, I'd say!

    Personally I'd never use any of the aforementioned on my home plot as I simply don't see the point, both practically and economically.

    However, I can tell you that the consultants and soil scientists are advocating the use of all three so its incorrect to say that its rejected by the industry because that simply isn't true. 

    To stoke the fires a bit more, there is a 'fourth horseman of the apocalypse' - BioChar! (OP this could be a good alternative to Pumice, maybe?) 
  • McRazz said:
    Whatever works for you, I'd say!

    Personally I'd never use any of the aforementioned on my home plot as I simply don't see the point, both practically and economically.

    However, I can tell you that the consultants and soil scientists are advocating the use of all three so its incorrect to say that its rejected by the industry because that simply isn't true. 

    To stoke the fires a bit more, there is a 'fourth horseman of the apocalypse' - BioChar! (OP this could be a good alternative to Pumice, maybe?) 
    Yep. I've used biochar before. I add it to my soil mix and compost. 
Sign In or Register to comment.