Digging near a conifer hedge

[eagleye]

That's a good idea! Unfortunately they're literally right on the surface..

 

So, I'm trying to create a level surface at the top of a tiered garden, going up with a 6 inch wall on the out side edge and down with a wall which will step down from 10 inches to about 4 along the inside edge.

 

Thanks for the input guys

 

Don't fanny about with footings and brickwork for something that high use some railway sleepers on edge

drill a few holes through them and pin them with some road pins or rebar

if the roots push the sleepers up in years to come take it out notch it refit it

better than cracked pushed up brickwork