Hesperotropsis × leylandii Emerald Isle®
Common name: 
Emerald Isle Leyland Cypress
Pronunciation: 
hes-per-OH-trop-sis la-LAN-de-i
Family: 
Cupressaceae
Genus: 
Hesperotropsis
Synonyms: 
Cuprocyparis leylandii Emerald Isle®
Cuprocyparis leylandii ‘Moncal’
Type: 
Conifer
Native to (or naturalized in) Oregon: 
No
  • Evergreen conifer, fast growing to 25 ft tall x 8 ft wide (7.6 x 2.4 m), pyramidal form, dense green foliage in flat sprays.
  •  Sun or very light shade.  May be used as a wind break.
  • Hardy to USDA Zone 5     According to Jacobson (1996, p. 178) it originally came from Britain and probably renamed for marketing purposes.  Introduced by Monrovia Nursery in 1992, which states that "this 20th century hybrid originating in Ireland", it was given the cultivar name 'Moncal' and the trademarked name of Emerald Isle.
  • Oregon State Univ. campus: SE corner of Richardson Hall.
Click image to enlarge
  • plant habit, about 8 years old

    plant habit, about 8 years old

  • branches, foliage

    branches, foliage

  • small branch

    small branch

  • small branch and branchlet with scale leaves

    small branch and branchlet with scale leaves