Plant Bio
Silver cushion bush is native to the southern coast of Australia, which means it does very well in salty air and dry, poor soil. In fact, one of the key elements of cushion bush care is not fussing over it too much. Ideal cushion bush growing conditions include extremely well-draining soil, full sun, and little water. During hot, dry spells and when it’s first getting established, however, it will benefit from being watered once a week. Silver cushion bush does not need to be fertilized and actually performs well in poor soil that’s low in nutrients.
Cushion bush does produce small yellow flowers on the tips of its stems, but most gardeners grow the plant for its foliage. The stems grow thick and outward in a shape very much like a tumbleweed, and the soft leaves stay close to the stems. Both stems and leaves are a bright silver, almost white color that reflects light very well and makes for a spectacular contrast against neighboring green plants. Bushes are round and tend to reach between 1 and 3 feet in height and width, though they can reach as much as 4 feet.
To keep the Calocephalus beautiful, regular pruning is recommended. This way you keep the plant in a nice shape. Too much pruning means that the plant will not flower or will flower less.
Frost protection is necessary at the Calocephalus. If the plant is in a pot then take it inside and preferably place it in a light spot. The Calocephalus in and border must be covered.