Cleaning Stone Chippings

[taffyrm16]

Hi,
I've laid cotswold stone chippings around the garden the last two years. Lats years I laid a new layer on top of the old as the previous years had discoloured so much and I was unable to get them looking any where near what they once did. The same is now true of the new layer I placed last year. Is there a way of cleaning them so that they look a little more as they once did please?

[thedoctor]

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[mikekite1969]

hi unfortunatley not as they are outside and exposed to the elements they will weather quite quickley especially if they are coloured chippings as opposed to natural cotswold chippings