Redwood Database

An index of all Redwood cultivars both in and out of commercial production.

Sequoia sempervirens ‘Simpson Silver’

Coast Redwood

‘Simpson Silver’ is a cultivar characterized by the distinctive silvery-blue hue on the upper surfaces of its leaves. This variety was initially discovered as a naturally occurring tree near Long Prairie Creek, California, in 1975. Shortly after its selection, ‘Simpson Silver’ was introduced to cultivation by the Saratoga Horticultural Research Foundation, as documented by Jacobson in 1996.

One notable attribute of ‘Simpson Silver’ is its rapid growth rate, with reports indicating that it can achieve a height of 7 meters within a span of ten years, as noted by Auders and Spicer in 2012. This vigorous growth habit, coupled with its unique foliar coloration, contributes to its appeal as an ornamental tree.

The silvery-blue hue of the upper leaf surfaces sets ‘Simpson Silver’ apart from the typical green foliage of the coast redwood species. This striking coloration is likely the result of a genetic mutation that alters the leaf pigmentation, imparting a distinctive and eye-catching appearance to the cultivar.

While maintaining the overall growth form of Sequoia sempervirens, ‘Simpson Silver’ offers a visually striking variation through its foliage color. The combination of rapid growth and silvery-blue leaves makes this cultivar a potential choice for landscapes where a bold, attention-grabbing specimen tree is desired.