I had done a backyard redo a few years back. To make your backyard more green you could hang plants along your fence. Being amongst nature can make you feel more relaxed. Hanging plants will give you the illusion of being surrounded by nature and makes your backyard more secluded and private at the same time.Gardening has found to be a great stress reliever so tend your garden by growing more vegetables, fruits and herbs, preferably your favorite ones as this will make your backyard look more pleasing and relaxing. You could even consider adding a patio in your backyard. A patio is a great place to sit back and relax and it is a great place to host summer parties and bbqs as well.Add a pool in your backyard. I have a pool in my backyard that was build by Ferrari pools it gives a more relaxing and soothing atmosphere to your backyard. You could even try putting up some globe lights or getting a hammock.