Algae on Gravel Pebbles

[Steve]

Hi,

I have an area of gravel path in the back garden which is shaded by a couple of large conifers. Over the last year or so, the gravel pebbles appear to be picking up a greenish tinge, presumably algae from the trees?

Is there anything I can use to return the pebbles to their original colour, or is it a case of removing and replacing?

Thanks for reading. Steve

[JimK]

pump up garden sprayer with diluted bleach in?

probly mould growing on sap from the trees....

cheers JimK

[Owain]

Shovel them up and run them through the washing machine with some bleach.

Then buy the Mrs a new washing machine and a big bunch of flowers?

Owain

[Clot]

That will do it.

Nope, green therefore algae.

[Chris J Dixon]

Shame stonewashed jeans aren't popular now.

Chris

[JimK]

pedant

[Andy Dingley]

Kill the algae, let the sun bleach it. Dead algae soon stops being so green.

I'd spray it with Jeyes fluid as an algicide. Then maybe pressure wash it a week later to encourage the algae to begone.