Conifer Database - formosana

Conifer Trees Database

Welcome to the American Conifer Society Database

Established in 1983, our mission is centered on advocating for the integration of conifer trees in garden designs and landscapes. We are dedicated to educating enthusiasts and the general public about the proper care, cultivation, and conservation of these majestic and diverse evergreens.

    
Chamaecyparis obtusa var. formosana

Chamaecyparis obtusa var. formosana, as described in 1914 by Alfred Rehder (1863-1949), in The Standard Cyclopedia of Horticulture vol.2, is commonly known as Taiwan yellow cypress, as well as 黃檜 (Huáng guì) in the Chinese language.

Description. Taiwan yellow cypress is an evergreen, coniferous variety of Hinoki cypress (C. obtusa). It differs from the type in the following ways:

  • seed cones are smaller, measuring 0.28 to 0.36 inch (7 - 9 mm)
  • seed scales have a small central depression
  • geographical differences that result in decreased cold-hardiness.

Distribution. This specific variety is native to Taiwan - Hualien, Ilan and Xinchu Xians, especially Yuanyanghu (Lake) Nature
Preserve, where it can be found growing at elevations of 5,200 to 9,500 feet (1,600 - 2,900 m) sea level. It generally grows in mesic (mixed) Chamaecyparis and broad-leaved forest; also exposed sites at high elevation.

Hardy to USDA Zone 8 - cold hardiness limit between 10° and 20°F (-12.1° and -6.7°C), and well-suited for cultivation in semi-tropical climate zones with high humidity and copious summer rainfall.





Chamaecyparis obtusa

Chamaecyparis obtusa

RECOMMENDED HARDINESS ZONES


HORTICULTURAL STATUS:RHS Registered
COLOR:Medium Green
GROWTH SHAPE:Broad Upright or Oval
GROWTH SIZE:Large: greater than 12 inches (30 cm) per year / greater than 12 feet (4 m) after 10 years
ORIGIN:Genera Species


to use on plant tags


Explore cultivars in the Chamaecyparis obtusa species
-- Select a Cultivar --