Photos: Rooftop Oasis

Ryann Ford

The pool house's curving cedar strips give the illusion of a canoe being carried overhead.

Ryann Ford

The sloping rooftop garden mimics the Hill Country landscape beyond.

Ryann Ford

Prairie Verbena

Ryann Ford

Clover and two varities of grassy horsetail ground the limestone steps connecting the main house to the pool and terrace.

Ryann Ford

Red ice plant

Ryann Ford

Four nerve daisy

Ryann Ford

White verbena 'Alba'

Ryann Ford

Stonecrop