Posted: 26/02/2013 at 22:48
As it's raised, though a bit hard to see how raised, I don't think the conifer roots would be a big problem, but the shade would mean growing plants that grow in shade. You could remove all the grass, improve the soil with compost and well rotted manure then divide it into four sections, 2 in the shade bit and 2 in the sun. Use bricks or some sort of edging stones. Then plant each section differently eg brassicas in one sunny section, squash and sweetcorn in another, and veg that can manage with some shade in the others. Is the shady bit shady all the time? Here is a site about shade tolerant veg.