EVERGREEN

Plant Encyclopedia

Paulownia tomentosa

Paulownia tomentosa ("Kiri")

Japanese name: キリ
Scientific name: Paulownia tomentosa

Paulownia tomentosa

[Overview]
A fast-growing deciduous tree reaching about 10 m in height.
Young branches are densely covered with stellate hairs and glandular hairs, and are sticky.
The leaves are simple and opposite, broadly ovate, 15–30 cm long and 10–25 cm wide, with entire margins, but they are often shallowly cut into 3–5 lobes.
The upper surface of the leaf is sparsely hairy, and the underside is densely covered with stellate hairs and glandular hairs.
The petiole is 6–20 cm long.
Large panicles, sometimes reaching 50 cm in length, are produced at the branch tips.
The flowers are pale purple, slightly crooked, long and bell-shaped, 5–6 cm long, with the tip divided into 5 lobes.
The fruit is an ovoid capsule 3–4 cm long.

[Uses]
The wood is light and soft with little warping, and is used for many purposes, such as chests of drawers, geta (wooden clogs), koto (Japanese zithers) and the lining of safes.
In the past, there was a custom of planting a kiri when a girl was born and making a chest of drawers from its wood as part of her bridal trousseau.
The leaves and fruits are used medicinally.
The young shoots can be eaten.
The leaves and inflorescences are stylized in the family crest called kirimon (kirikamon).

[Cultivation]
Propagate from seed or by root cuttings.
As long as the site is sunny and well drained, it is not particular about soil and grows well even if left alone.

Details

Names
Japanese: キリ
Life form
Tree
Evergreen / deciduous
Deciduous
Leaf type
Broadleaf
Habit
Terrestrial
Flowering season
May, June
Fruiting season
August, September
Distribution or origin
China
Growth form
Upright
Height
10000 mm
Leaf shape
Simple leaf (unlobed)
Leaf arrangement
Opposite
Leaf margin
Entire
Inflorescence
Panicle
Flower color
Purple
Inflorescence length
500
Leaf color
Green
Availability of seeds and plants
Low
Form sold
Seeds, Seedlings
Propagation
Seed
Sun exposure
Full sun
Water needs
Moderate
Soil needs
Required
Suitable uses
Parks and gardens
Uses
Other crafts
24 solar terms and 72 pentads
Greater Heat (first pentad)
Japan Flower Trade Code
19475

Translated from our Japanese encyclopedia. If anything differs, the Japanese page is correct.

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