Paulownia tomentosa
(Foxglove Tree)

Family - Paulowniaceae
Category - Tree
Origin - China
Year of Introduction - 1834
Season of Interest - Spring, Summer, Autumn
Hardiness - H5
Height - up to 12m if left unpruned
Width - up to 10m if left unpruned
Location - The Exotic Garden

Description: A Deciduous, medium-sized tree (if left unpruned) with a pyramidal outline. Large, hairy, bright green leaves are ovate to heart-shaped with shallowly lobed margins. Fragrant funnel-shaped flowers with recurved petal tips are a shade of pale mauve. Each boom has pale yellow markings towards the throat. The flower buds are produced in the autumn and do not reliably come through the winter in this climate, but when produced the flowers are held in panicles and Bloom as the leaves emerge in late spring.

Paulownia tomentosa is used as a cut-back plant in the Exotic Garden at Malverleys to maintain the large leaf size and control overall height. Flowers are not produced when used as a cut-back plant, but stems up to 3m in height bearing very large leaves to 60cm across are produced.

Award of Garden Merit (AGM)

Synoym -Paulownia imperialis

Additional common names - Empress Tree, Princess Tree

Flower:

Fragrant, funnel-shaped flowers with recurved petal tips are a pale shade of mauve and marked with pale yellow towards the centres. The brown fuzzy flower buds are produced in autumn and often damaged by frost. If the buds survive the winter the flowers are held in panicles and produced in May as the leaves emerge and are followed by pointed seed capsules. The flowers will not be produced if the tree is used as a cut-back plant.

Flower colour: Mauve

Flower shape: Funnel-shaped flowers in panicles

Flowering time: May

Foliage:

Large, hairy, bright green leaves are ovate to Cordate in shape with shallowly lobed margins. The leaves are held in opposite pairs on the upright stems. If used as a cut-back plant, each leaf can reach 60cm across.

Foliage Senescence: Deciduous

Foliage Shape: Ovate to rounded, cordate

Propagation:

Cuttings, seed.

Cultivation:

Best in full sun in fertile, moisture-retentive soil that is well-drained.