Compost ..compost and more compost !!!
Make some and buy some and work on building your soil. Gather leaves in the fall and what other organics you can find and work them onto your soil. Sometimes I spread leaves on my lawn and mow them into small pieces and they work into the soil and enrich the grass.

I also have a deal with one of the local Tim Horton's to save me some of their coffee grinds and I use that in my beds and compost.
You can always begin in your garden with lasagna beds and just keep on making lasagna beds and working on your soil at the same time. You can google lasagna beds and get tons of info there.
With your new rich soil and all that sun...you should be able to grow lots of plants..roses..etc.
Hope this is the info you were looking for :)

thank you msjean, I will be trying that this summer!!!

Lasagna gardening could be the key. Try the lasagna gardening forum:

Here is a link that might be useful: lasagna gardening