Entry to the garden is now a journey through different layers of green. “We used lower-level plantings around the stairs and more architectural plants as you reach the upper lawn level,” says Lyndall. The garden bed at the top of the retaining wall is filled with blue chalksticks ( Senecio serpens), a hardy, drought-tolerant succulent with silver-blue foliage. Flowing over the wall is Dichondra ‘Silver Falls’. A cardboard palm ( Zamia furfuracea) can be seen on the left.