Succulent mini landscape Plum-colored foliage is a rich accent against soft greens in these easy-care containers. Arrange taller plants in the center or back, trailers near the pot’s edges. For immediate effect, choose large plants and big pots (shown above left: 10 in. across, 14 in. tall; right: 16 by 18 in.). Design: Daniel Nolan, Flora Grubb Gardens (floragrubb.com) Container at left (clockwise, from bottom left corner of pot): Aloe humilis (6 in.); Phormium ‘Guardsman’ (5 gal.); Leucade...