Redwood Database

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

Sequoia sempervirens ‘Aptos Blue’

Coast Redwood

‘Aptos Blue’ is a cultivar of Sequoia sempervirens introduced by the Saratoga Horticultural Research Foundation in California during the mid to late 1970s. It is commonly grown in North America and is known for its distinctive foliage and growth habit.

The RHS Encyclopaedia of Conifers (Auders & Spicer 2012) describes ‘Aptos Blue’ as a conical tree with horizontal first-order branches and pendulous branchlets. The leaves are densely set, dark bluish-green, and quite broad relative to their length. However, Dirr (2009) makes an important distinction, noting that the secondary branches are also ‘distinctly horizontal’, and it is the third-order branchlets that are pendulous.

The intensity of the blue coloration in ‘Aptos Blue’ appears to vary between individual plants and the environment in which they are grown (Jacobson 1996; Auders & Spicer 2012). This variability suggests that factors such as light exposure, soil conditions, and climate may influence the expression of the blue foliage trait.