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Perlite for lawn drainage

Anyone tried perlite to aerate their lawn? We have clay soil. Have aerated using core plugs and put horticultural grit in previously. Wondering which would be better?
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  • ObelixxObelixx Vendée, Western FrancePosts: 28,555
    Sharp sand - not builders' sand.

    In my experience, perlite floats.
    "We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
  • Hostafan1Hostafan1 Posts: 33,305
    I'd think perlite would be prohibitively expensive 
    Devon.
  • Sam76Sam76 Posts: 123
    100litres for £20 on amazon. But is Perlite more effective than horticultural grit? 
  • Hostafan1Hostafan1 Posts: 33,305
    Sam76 said:
    100litres for £20 on amazon. But is Perlite more effective than horticultural grit? 
    I've never heard of anyone using it, which makes me think , probably not.
    Devon.
  • Hostafan1Hostafan1 Posts: 33,305
    I'd think perlite might clog together and not drop into the core holes unless it's absolutely bone dry.
    Devon.
  • Papi JoPapi Jo Brittany, France Posts: 3,703
    Obelixx said:
    Sharp sand - not builders' sand.

    In my experience, perlite floats.

    Hi @obelix, Any idea what "sharp sand" is called in French and where you would get it in France ? It seems to me that French shops do not make the difference between "builders' sand" and "sharp sand"?!
    The Truffault garden centers sell these bags of sand : https://www.truffaut.com/sable-sac-20-l-385435.html which I buy. It says "Granulométrie 0/3 mm". What is the granulométrie (grading) of so-called sharp sand (as opposed to builders' sand)?


    You are invited to a virtual visit of my garden (in English or in French).
  • Papi JoPapi Jo Brittany, France Posts: 3,703
    @Sam76 Forget about using perlite, not at all suited to aerating lawns.
    You are invited to a virtual visit of my garden (in English or in French).
  • AnniDAnniD South West UKPosts: 10,999
    I have spoken to my local expert (husband).  He also suggests using sharp sand mixed with top soil otherwise it might "clag". If you only have the choice between horticultural grit and perlite for some reason, then use the grit.
    I will tag in @glasgowdan , see what he has to say.
  • Hostafan1Hostafan1 Posts: 33,305
    I once had a client who used to let her lawn dry out and crack in summer and just pour pea shingle into the cracks. She swore by it . 
    Devon.
  • Pete.8Pete.8 Billericay, EssexPosts: 9,861
    Perlite is great for seeds etc, but if you squeeze a bit with your fingers it bursts and turns to dust and that's what would happen within a year or so of using it on grass. It's not a long-term solution.
    As said above, I'd suggest sharp sand
    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
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