These clients had recently built a new home on a site that is black volcanic clay which is a very hard surface but full of the nutrients that plants need. These nutrients are unavailable to plants as it is just too hard for the roots to penetrate. To remedy this we added gypsum and plenty of organic matter, (a soil and compost mix) to break up the clay. Once we leveled the area we laid Santa Anna couch which is a beautiful fine leaf which is thick and soft just like a rug you would buy for the lounge room floor. Santa Anna also has the benefits of being drought tolerant, hard wearing and much less invasive than Kikuya.