3 out of 4 house owners own a garden or a lawn. 11 percent of Canadians who are above 30 years of age spend about 2 hours a day working on their terrace.Steep slopes characterize a majority of these gardens in Canada. Depending on how steep a hill is, a homeowner can deal with it in a variety of ways. Landscaping your backyard slopes can help you convert a once barren land to a thing of beauty.