Buddleja × lewisiana

Buddleja × lewisiana
Origin	US

Buddleja × lewisiana is an American hybrid of Buddleja madagascariensis and Buddleja asiatica first described and named by T H Everett in 1947, and introduced to commerce in 1958.[1][2] The taxonomy of the plant remains a matter of contention.

Description

Buddleja × lewisiana is a lax, spreading shrub growing to a height of 2 m. The young shoots are densely felted with a white indumentum, and bear similarly felted lanceolate leaves < 17 cm long. The inflorescences comprise slender panicles, 20 cm long, of yellow or orange flowers.[2]

Cultivation

The hybrid is tender, requiring greenhouse protection during winter in the UK. Hardiness: USDA zones 8–9.[2]

Synonymy

Buddleja × madagascatica
Buddleja × lewisii [3]

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References

Everett, T. H. (1948). Gard. Chron. Amer. 52: 128-129
Stuart, D. D. (2006). Buddlejas. RHS Plant Collector Guide. Timber Press, Oregon. ISBN 978-0-88192-688-0.
Bean, W. J. (1970). Trees & Shrubs Hardy in the British Isles, 8th ed., (2nd impression 1976) John Murray, London. ISBN 9780719517907

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[Everett-1] Everett, T. H. (1948). Gard. Chron. Amer. 52: 128-129

[Stuart-2] Stuart, D. D. (2006). Buddlejas. RHS Plant Collector Guide. Timber Press, Oregon. ISBN 978-0-88192-688-0.

[Bean-3] Bean, W. J. (1970). Trees & Shrubs Hardy in the British Isles, 8th ed., (2nd impression 1976) John Murray, London. ISBN 9780719517907