Cryptomeria japonica 'Sekkan Sugi' - 'Sekkan Sugi' Japanese Cryptomeria
Family - Taxodiaceae
Size - To approximately 35', pyramidal to conical in shape. Growth rate is approximately 10 to 12 inches per year.
Foliage - Evergreen, spirally arranged, awl shaped. New growth is a golden yellow in the Spring providing a stark contrast with the older dark green foliage. New yellow foliage transitions to dark green throughout the course of the season, usually persisting for 3 months.
Flower/Fruit/Seed - Cones, terminally placed, green when young turning brown in to Fall, approximately 2/3" in diameter composed of numerous scales, each containing 3 to 5 seeds. Seed germinates prolifically with 1 to 2 months moist stratification at 41 F.
Bark - Reddish-brown and peeling off in long strips.
Pests and Diseases - None noticed. Bagworms are unable to build cocoons with the foliage of Cryptomeria.
Landscape Use - Useful as a specimen, fine textured, graceful. Could be used in allees. The species can get to 50' to 60' by 30' to 40'. Numerous cultivars exist besides 'Sekkan Sugi', all have unlimited uses in the home and commercial landscape. 'Yoshino', is another one of my favorites.
Performance - 10 Excellent plant to use in the South. Is applicable in to zones 8 and 9 and is hardy in to zone 5. Easy to grow, prefers a light moist soil but adapts well to clays as long as the site isn't wet. I would avoid windy sites as it may be prone to dessication in summer and winter. Seems to tolerate confined root space and pollution under the harshest of conditions. One in town has been confined in a very small root space directly next to a very heavily traveled roadway and done quite well.