Posted: 02/08/2015 at 11:24
Hi Overgrowth, it depends what sort of look you want with that sloping area. You could simply plant the whole slope with some climbers on the fence, and a selection of shrubs and perennials which will like the (presumably) quite shady site. The soil won't be great under the grass so you'll have to improve it with some manure and compost etc. before planting. Whatever you decide, you'll need to blend the bed/border into the rest of the rear garden. You could add an edging and make the slope less pronounced, but I'm not sure that's necessary - it comes down to personal preference - and budget!
An alternative, if you have the time and energy, is to move your shed down there and have a 'work' area with compost bins etc. You can still have some planting at the junction with the rest of the garden to hide all that. A trellis screen with climbers or a few larger shrubs.
Hope that gives you a couple of ideas to think about for now