Paulownia kawakamii (Sapphire Dragon Tree)
Botanical Information
Family | Paulowniaceae |
Genus | Paulownia |
Species | kawakamii |
Category | Woody |
Type | Tree (deciduous) |
Origin | Taiwan, China and Japan. |
Details
USDA Hardiness Zone | 6 - 10 |
USDA Hardiness Ref. | |
Canadian Hardiness Zone | 5a - 8a |
Canada Hardiness Ref. | |
RHS Hardiness Zone | H3 - H7 |
RHS Hardiness Ref. | |
Temperature (°C) | -23 - 2 |
Temperature (°F) | -10 - 35 |
Height | 10 m |
Growth | Fast |
Flowering Period | January, February, March, April, November, December |
Description and Growing Information
General Description | The Sapphire Dragon Tree has bright green, heart-shaped leaves. The tree begins budding in late autumn, with the flowers opening during spring. A fast growing deciduous tree. |
Shape | Spreading. |
Landscape | Single specimen, flowering tree for lawns. |
Propagation | Propagate by seed or semi-ripe cuttings. |
Cultivation | Moist, fertile soil. Can grow in full sun or partial shade. Be sure to protect young trees from frost. |
Pests | No notable pests or diseases. |
Notable Specimens | Westonbirt, The National Arboretum, Tetbury, Gloucestershire, England. Chelsea Physic Garden, London, United Kingdom. |
Habitat | Horticultural origin. |
Photographs
A mature tree at Westonbirt, The National Arboretum, Tetbury, Gloucestershire, England.
Photographed at Westonbirt, The National Arboretum, Tetbury, Gloucestershire, England.

Paulownia kawakamii, fruit. Chelsea Physic Garden, London, United Kingdom.

Paulownia kawakamii, form. Chelsea Physic Garden, London, United Kingdom.

Paulownia kawakamii, leaf. Chelsea Physic Garden, London, United Kingdom.

Paulownia kawakamii, bark. Chelsea Physic Garden, London, United Kingdom.