Let's have hanging plants partially covering retaining walls. Also, use for upstairs balcony wall. Casuarina Glauca "Cousin It" Cousin It is a groundcover form of the tough, hardy Australian native sheoak.
Myoporum parvifolium Creeping boobialla white is a dense ground cover that anchors itself and continues to spread. Fleshy green foliage and dainty white flowers in summer. Prefers a full sun to part shade position.