Answer : There are a few things to consider when landscape designing your backyard: what do you want to use the space for, what kind of plants and landscaping materials do you want to use, and how much work are you willing to put into maintaining the space?
If you want to use your backyard for activities like relaxing, dining, or playing games, you'll need to design it with these things in mind. You'll also need to choose plants that can withstand the conditions in your area (sun, shade, dryness, etc.), and that match your style preferences.
If you're not interested in doing a lot of maintenance work, consider using low-maintenance plants and materials like rocks or mulch.