Plants are the must-have home accessory. Not only are they both natural and cost effective, but they also have a serene and calming quality which is good for the spirit. It's important for you to incorporate outdoor elements into your indoor space because it improves mood, lifts energy and freshens the air. Since it's Spring, nurseries and gardens across the country are opening their doors for garden season. In replace of the typical potted houseplant, a hanging terrarium offers a cheeky and…