Dubbed the "plantfluencers" by the New York Times, Mel Brasier, Garrett Magee, and James DeSantis, owners of the Manscapers landscaping company, do more than plant, mulch, and manicure a garden; they look at the space just as interior designers do a room, considering the aesthetics and the way people live in it. Now they show you how to apply familiar interior design principles to your outdoors, including:   Deciding on a concept to help direct the mood of your space"Zoning" your space into functional areas, such as for lounging, cooking, or entertainingDefining the areas with furniture and hardscaping like fencing, decking, pools, planters, pergolas, and pathwaysBringing in the green, including plants that are both functional (privacy shrubs and shade trees) and decorative (pretty perennials, climbers, and textural grasses)Adding the finishing touches: the pillows, throws, hurricane lanterns, and other details that will make you want t