Conifer Database - Castlewellan

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.

    
Cupressus × leylandii ‘Castlewellan’

Cupressus × leylandii

Cupressus × leylandii 'Castlewellan' is a very strong-growing, broadly upright selection of Leyland cypress with greenish yellow young shoots of foliage that darken to more a typical green over course of the season. After 10 years of growth, a mature specimen will measure 16 feet (5 m) tall and 6 feet (2 m) wide, an annual growth rate of 18 to 24 inches inches (45 cm - 60 cm).

This cultivar originated as a seedling selected in the early 1960s by John Keown of Castlewellan, Northern Ireland, United Kingdom. Notable is the fact that in this case, one of the parents involved in the hybridization was Cupressus macrocarpa 'Lutea.' The plant is often seen mislabeled under the name, 'Castlewellan Gold.' In addition, 'Barden's Gold' and 'Galway Gold' are also common misnomers.




Cupressus × leylandii

Cupressus × leylandii

Cupressus × leylandii

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HORTICULTURAL STATUS:Established / Published
COLOR:Yellow or Gold
GROWTH SHAPE:Broad Upright or Oval
GROWTH SIZE:Dwarf: 1 to 6 inches (2.5 – 15 cm) per year / 1 to 5 feet (0.3 – 1.5 m) after 10 years
ORIGIN:Seedling Selection


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