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what kind of grit do the gardeners use in there potting soil?

what do the gardeners from gardeners world us there potting soil? It looks like a kind or very small stones about two to four millimeters .Is it a kind of grit ore something else? They also springel some of it on top of een potted plant. Are there better things i can use? what is the name of that product.?
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  • punkdocpunkdoc Sheffield, Derbyshire border.Posts: 9,559

    Hi Dutch Ellen.

    I lived in Groningen for a year working at the hospital. Had a great time

    What I use is horticultural grit which makes a good draining compost and sprinkled on top also aids drainage and stops moss or algae growing on the surface.

    So, so you think you can tell
    Heaven from hell?
    Blue skies from pain?
  • a very light grit not your road or gravel grit.image

  • nutcutletnutcutlet PeterboroughPosts: 26,160

    alpine grit is good but hard to find (around here anyway) I went to the pet shop part of the GC and got aquarium gravel. Comes in various grades and colours and is clean.

  • PalustrisPalustris Posts: 3,633

    For some plants I do use road grit, that is the 7mm. limestone stuff. Only for lime loving plants of course. even that is hard to get hold of though, in smal bags.

  • nigel coad nice to kwow jou liked it in Groningen. I live at the other side of the netherlands, next to zeeland.

    I have a question, where can i buy that?
  • can i use litter box grid instead?
  • sotongeoffsotongeoff Posts: 9,802

    That is cat litter??-would not think soimage

  • PalustrisPalustris Posts: 3,633

    No, it tends to fall to pieces when it gets wet and clogs up the compost. The grit is to help drainage not keep moisture in.

  • punkdocpunkdoc Sheffield, Derbyshire border.Posts: 9,559

    I get my grit at garden centres but can also get from DIY stores and builders merchants

    So, so you think you can tell
    Heaven from hell?
    Blue skies from pain?
  • BobTheGardenerBobTheGardener Leicestershire, UKPosts: 10,932

    Hi Dutch-Ellen, try searching google.nl for "tuinbouw grind", which I think means 'horticultural gravel' in Dutch.  Also "moraine grind".  Look for a mix with quoted grain size mix of about 1 to 6mm (1/6) or 2 to 4mm (2/4) although you could get wide range mix (eg 0/8) and sieve (zeef?) it yourself. image

    A trowel in the hand is worth a thousand lost under a bush.
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