Paulownia elongata × fortunei

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David Ewins

Credits

Owen Johnson (2022)

Recommended citation
Johnson, O. (2022), 'Paulownia elongata × fortunei' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/paulownia/paulownia-elongata-x-fortunei/). Accessed 2024-05-28.

Forestry hybrids, resembling the parents; very vigorous and with long, straight stems under ideal conditions.

USDA Hardiness Zone 7

RHS Hardiness Rating H5

Hybrids between the two most vigorous Chinese Paulownia species now include several of the most popular clones for biomass and timber plantations wherever summers are sufficiently long and warm. There is probably little to choose between the available clones in terms of vigour or appearance; they have been developed and marketed by different companies which are based in various countries.


BIG®

A clone offered by the World Paulownia Institute in the United States (World Paulownia Institute 2022); exceptionally vigorous under ideal conditions in the south-eastern States and recommended for biomass production.


'Oxi'

Synonyms / alternative names
Paulownia IN VITRO 112®
Paulownia OXYTREE®

Developed at the University of Castilla-La Mancha, Spain, and registered in 2011 (Stochmal et al. 2018); promoted in Europe by Bio Tree for biomass and timber production (Bio Tree 2022). It is a sterile hybrid, and its timber is 20% lighter than that of Paulownia tomentosa (Koman & Feher 2020).


PHOENIX ONE®

A clone noted for heat and drought tolerance in the United States; marketed in Germany by WeGrow GmbH (WeGrow GmbH 2022). The sale name derives from the ability of Paulownia – unusual in a timber crop – to coppice strongly, preventing the need to replant after felling. PHOENIX ONE® was among the clones selected for England’s first Paulownia plantations in 2022 (SuffolkWire 2022).


'PWCOT-2'

Synonyms / alternative names
Paulownia COTEVISA 2®
Paulownia 'Cote-2'

A clone developed in Spain both for biomass and timber production, marketed by ipaulownia.com (ipaulownia Sustainable Forestry 2022); also distributed by Paulownia Germany (a company based in Romania, despite its name) (Paulownia Germany 2022).


SUN TZU 11®

A Chinese selection, successfully tested in the dry climate of southern Spain (Jimenez Bocanegra 2013).