Viewing post #686313 by dyzzypyxxy

on locating the gas lines first. Also locate and extend the irrigation heads if there is an in-ground sprinkler system. Then put in a low retaining wall to hold the slope. Stone or timbers would work nicely. Fill with compost and topsoil. Don't forget to overfill - mound it up over the top of the new retaining wall - at first because the soil will settle a lot.

May I just comment that hydrangeas and raspberries won't both grow in the same conditions. Hydrangeas need shade most of the day, while raspberries need as much sun as you can give them. You need to watch the area to see how much sun it gets, then decide on your plants based on that. Unless that wall faces south, I'd have to say it's not going to be suitable for raspberries. If it faces west, hydrangeas aren't going to be happy with hot afternoon sun.