When Syd Teague moved from Tucson to Austin, she wanted a water thrifty garden. As she shaped her land, it became her outdoor laboratory from succulents to flowering perennials. After corralling rainwater runoff in multiple berms and swales, she patterned rambling wanders and broad sweep views that converge in shady hideaways. Now, she and husband Lary Evans watch the seasons evolve as colors and textures follow the calendar.