On 23/09/2010 16:40, Donnie wrote:
Cheers all for the replies, very useful, some i had an inkling of some
not and that site suggested is great!!

I'll be getting some excercise sorting out some of the rubble too as
it's all pretty much too chunky at the moment so good job i have a
sledgehammer!!


I bedded mine on just sharp sand 20 odd years ago, without any serious
compacting of the hardcore, and they have been 100% stable.
I had to lift a few recently when a hollyhock self seeded, grew to 14
feet, and sent roots outwards to a similar distance (fortunately just
below the surface). How it got its nutrients from sand I have no idea,
but it certainly was a handsome specimen.