Acer campestre 'William Caldwell'

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Acer campestre
Cultivar 'William Caldwell'
Origin William Caldwell Nursery, Cheshire, UK

The Field Maple cultivar Acer campestre 'William Caldwell' was cloned from a seedling discovered at Knutsford, England, in 1976 by Donovan Caldwell Leaman, head nurseryman at the now-defunct William Caldwell Nursery. The tree was released to commerce in 1980.

Description[edit]

The tree is noted for its fastigiate shape, and foliage which turns orange or red in autumn where planted on acid soils, not yellow as with the species.[1]

Cultivation[edit]

'William Caldwell' is largely restricted to the UK, where it remains uncommon; it was introduced to the USA by the National Arboretum, Washington, D. C. in 2012. The tree is reputedly difficult to propagate.

Etymology[edit]

The cultivar is named for the William Caldwell nursery (ceased trading c. 1990). The cultivar was originally known as 'King Canute' until 1983; Canute was the emblem and trademark of the William Caldwell nursery.

Accessions[edit]

Europe[edit]

Nurseries[edit]

Europe[edit]

References[edit]

  1. ^ van Gelderen, D. M., de Jong, P. C., and Oterdoom, H. J. (1994). Maples of the World. Timber Press, Oregon. ISBN 0-88192-000-2.