EVERGREEN

Plant Encyclopedia

Tricyrtis affinis

Tricyrtis affinis ("Yamajinohototogisu")

Japanese name: ヤマジノホトトギス (山路杜鵑草)
Scientific name: Tricyrtis affinis

Tricyrtis affinis

[Overview]
A perennial 30–60 cm tall, found in the mountains.
The stem has hairs pointing obliquely downward.
Leaves are simple and alternate, oblong, 8–18 cm long.
1–2 flowers face upward at the stem tip and in the leaf axils on the upper part of the stem.
The flowers are cup-shaped and 6-petaled, with tepals spreading open, white with purple spots.
The style of the pistil divides into 3, and each branch splits again into 2 and opens flat.
There are 6 stamens; the filaments rise along the style, curve back at the top, and bear the anthers facing outward.
The filaments and styles have no spots.
The fruit is a capsule.

[Cultivation]
Propagate from seed, by division, or by cuttings of shoots.
It prefers bright partial shade and well-drained soil.
It likes high humidity in the air, so it is best to avoid places that dry out easily.
For potted plants, water thoroughly when the soil surface dries; for plants in the ground, rainfall is sufficient unless summer brings a long spell of sunny weather and the soil becomes severely dry.
If a slow-release chemical fertilizer rich in phosphorus is applied at planting, no further fertilizer is particularly necessary, but for potted plants, slow-release chemical fertilizer may be placed on the soil once a month in spring.
Pests and diseases include southern blight and slugs.

Details

Names
Japanese: ヤマジノホトトギス(山路杜鵑草)、チュウゴクホトトギス(中国杜鵑草)
Life form
Perennial
Habit
Terrestrial
Planting (or sowing) season
February, March
Flowering season
August, September, October
Distribution or origin
Japan (Hokkaido: southwestern to Kyushu)
Height
300–600 mm
Leaf shape
Simple leaf (unlobed)
Leaf arrangement
Alternate
Number of petals
6
Flower color
Purple, White
Leaf color
Green
Availability of seeds and plants
Low
Form sold
Seedlings
Propagation
Seed, Division, Bud cuttings
Sun exposure
Partial shade
Water needs
Moderate
Soil needs
Required
Suitable uses
Potted plant, Parks and gardens
Diseases
Southern blight
Pests
Slugs
Designated plants
Endemic to Japan

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

Sponsored