Blackening paving stones

Posts

• Athelas Posts: 946

  June 2023

  It will probably be more like 45 days to see a significant difference. But it should be worthwhile — I use it yearly on my sandstone
  
  https://diygardening.co.uk/products/patio-magic/
  

  Cambridgeshire, UK

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• bédé Posts: 3,095

  June 2023

  parrotfeather* said:

  It is also advertised as a completely natural product and does not seem to damage plants.
  

  Don't believe claims without some proof.  What does "natural"  mean?

   location: Surrey Hills, England, ex-woodland acidic sand.
  "Have nothing in your garden that you don't know to be useful, or believe to be beautiful."

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