EVERGREEN

Plant Encyclopedia

Chrysogonum virginianum

Chrysogonum virginianum (golden knee, "Kinseigiku")

Japanese name: キンセイギク (金星菊)
Scientific name: Chrysogonum virginianum

Chrysogonum virginianum

[Overview]
A perennial 15–30 cm tall that grows in forest areas in its native habitat.
In warm regions it is evergreen.
It extends rhizomes and spreads in a mat.
The whole plant is covered with many white hairs.
The leaves are simple and opposite, ovate, about 10 cm long and 7 cm wide, with a base that is somewhat heart-shaped or gradually narrows into the leaf stalk.
The leaf margins have blunt teeth.
The leaf stalk is long and winged.
Yellow flower heads about 3–4 cm across are borne on flower stalks extending from the leaf axils; there are 5 ray florets, opening in a star shape.
There are 5 involucral bracts.
The fruit is an achene with 4 ridges.

[Cultivation]
Propagate from seed or by division.
It prefers fertile, well-drained soil that is moderately moist, in sun to partial shade.
It is tough and grows well if the conditions suit it.
Water thoroughly when the soil surface dries.
There are no particular pests or diseases.

Details

Names
English: golden knee, goldenstar, green and gold
Japanese: キンセイギク(金星菊)、コガネグルマ(黄金車)
Life form
Perennial
Habit
Terrestrial
Planting (or sowing) season
April, May, September, October
Flowering season
May, June, July, August, September, October
Distribution or origin
Eastern United States
Height
150–300 mm
Leaf shape
Simple leaf (unlobed)
Leaf arrangement
Opposite
Leaf margin
Serrate
Inflorescence
Head
Flower color
Yellow
Leaf color
Green
Availability of seeds and plants
Low
Form sold
Seedlings
Propagation
Seed, Division
Sun exposure
Full sun, Partial shade
Water needs
Moderate
Soil needs
Required
Tolerance
Cold tolerance
Suitable uses
Ground cover, Potted plant, Parks and gardens
Hardiness zone
5a–9b
Japan Flower Trade Code
69023

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

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