Redwood Database

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

Sequoia sempervirens ‘Korbel KT’

Coast Redwood

‘Korbel KT’ is a cultivar of Sequoia sempervirens that was discovered in the wild near Korbel, California, by W.J. Libby and K. Tufuor of the University of California before 2001. It is characterized by its upright, columnar growth habit and relatively slow growth rate.

Compared to the typical growth rate of the species, ‘Korbel KT’ exhibits a slower pace of development, growing at approximately half the speed of the standard coast redwood (Auders & Spicer 2012). This slower growth rate makes it an attractive option for gardeners and landscapers who desire a more manageable and compact form of the species.

The upright, columnar growth habit of ‘Korbel KT’ sets it apart from the more pyramidal or conical shape of many other coast redwood cultivars. This narrow, vertical form allows it to fit well in smaller spaces or where a strong architectural accent is desired in the landscape.

One interesting characteristic of ‘Korbel KT’ is the presence of some lower branches that are upturned near their ends. This unique feature adds a subtle twist to the otherwise straight and uniform appearance of the columnar form, creating a slightly more dynamic and visually engaging silhouette.