Hosta

The Chinese Elm cultivar Ulmus parvifolia 'Seiju' is a dwarf variety, a sport of 'Hokkaido'.^[1]

Description

'Seiju' is described as smaller than Catlin and faster growing than Hokkaido, distinguished from the latter by its larger leaves.^[2]

Pests and diseases

The species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola.^[3]

Cultivation

The tree is commercially available in the United States and Australia where it is popular as a bonsai subject.^[4] The tree was also listed in the UK until 2002.

Accessions

North America

• Bartlett Tree Experts, US. Acc. no. 2004–519
• Missouri Botanical Garden, St. Louis, Missouri, US. Acc. nos. 1999–1924, 1999–1925, 2003–2731.
• Smith College, US. Acc. no. 29788

Europe

• Grange Farm Arboretum [1], Sutton St. James, Spalding, Lincs., UK. Acc. no. 836.

Nurseries

North America

(Widely available)

Australasia

• Yamina Rare Plants [2], Monbulk, Melbourne, Australia.

References