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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.
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. With all its beauty, though, this plant has a relatively short lifespan and bushes may need to be replaced every couple of years.