Ulmus parvifolia 'Sempervirens'

Ulmus parvifolia 'Sempervirens'
'Sempervirens' at Huntington Botanic Garden, Pasadena, California (circa 1951).
Species	Ulmus parvifolia
Cultivar	'Sempervirens'
Origin	US

The Chinese Elm cultivar Ulmus parvifolia 'Sempervirens' is an American introduction, commonly known by the synonym 'Evergreen', and may also be in synonymy for U. parvifolia 'Pendens'.

Semi-evergreen to evergreen depending on climate, it is described as having a rounded crown and gracefully arching branches bearing deep-green foliage.

The species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola.^[1]

The tree was first listed by Bailey & Bailey in Hortus Second, 747, 1941,^[2] and remains in commercial cultivation in the USA. It is not known to be in cultivation in Europe or Australasia.

• Ulmus parvifolia 'Evergreen': Plant Buyer's Guide, ed. 5, 253, 1949.
• Ulmus parvifolia 'Pendens', possible synonym.
• Ulmus parvifolia sempervirens 'True Green': Monrovia Nursery Catalogue, 1971.

• Bartlett Tree Experts, North Carolina, US. Acc. no. 1451
• Brooklyn Botanic Garden [1], New York, US. Acc. no. X00486.

• C J Growers, San Diego, California, US.
• ForestFarm [2], Williams, Oregon, US. (as 'Evergreen').
• Monrovia Nursery [3], Azusa, California, US.

• http://www.ces.ncsu.edu/depts/hort/consumer/factsheets/trees-new/cultivars/ulmus_parvifolia.htm Ulmus parvifolia cultivar list.

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