Interior designer Emily Pinney and landscape designer Andrea Nilsen Morse combined their talents to give a couple the retreat they longed for on the roof deck of their Boston condominium. Continuing her theme for the interior design, Pinney chose rugs and accent pieces in bright jewel tones, pairing them with white-upholstered teak furniture, for the three distinct sitting, lounging, and dining areas, as well as a lower-level area outside the owners’ bedroom. Morse then brought in a series of large planters, in a range of sizes—to further separate the three upper-deck spaces—and filled them with a mix of sun-loving, wind- and drought-tolerant plants. Sedum, bright purple salvia, evergreen boxwood, white beach roses, and pink-and-chartreuse Japanese spirea provide color. Ornamental grasses offer movement and screening. And a pretty Koussa dogwood creates a canopy that shades an interior west-facing office from the afternoon sun.