EVERGREEN

Plant Encyclopedia

Rhododendron tosaense

Rhododendron tosaense ("Fujitsutsuji")

Japanese name: フジツツジ (藤躑躅)
Scientific name: Rhododendron tosaense

Rhododendron tosaense

[Overview]
A semi-evergreen shrub 1–2 m tall, growing in the low mountain zone near the coast and similar places.
Young branches and petioles are densely covered with pale brown bristles.
Leaves are simple and alternate, and there are two types, spring leaves and summer leaves.
Spring leaves are oblong, 1.5–3 cm long and 0.5–1 cm wide, with white hairs on both surfaces and the margins.
Summer leaves are narrowly oblanceolate, 0.8–1.5 cm long and 2–3 mm wide, and somewhat thick.
1–3 flowers are borne at the branch tips.
The flowers are wisteria-colored; the corolla is funnel-shaped, about 3 cm across, and 5-lobed, with dark spots on the inside of the upper lobe.
There are 5 stamens.
The fruit is a narrowly oblong-ovate capsule 7–10 mm long, with many brown hairs.

[Cultivation]
Propagate by cuttings.
It prefers a sunny, well-drained site.
It is easy to grow.

[Notes]
The Japanese name comes from the wisteria-colored flowers, and because its branching is delicate it is also called Men-tsutsuji, in contrast to On-tsutsuji.

Details

Names
Japanese: フジツツジ(藤躑躅)、メンツツジ(雌躑躅)、ヒュウガツツジ(日向躑躅)
Life form
Shrub
Evergreen / deciduous
Semi-evergreen
Leaf type
Broadleaf
Habit
Terrestrial
Planting (or sowing) season
March, April, September, October
Flowering season
March, April
Distribution or origin
Japan (Honshu: Kii Peninsula, Shikoku: Tokushima, Kochi, Kyushu: Oita, Miyazaki, eastern Kagoshima)
Growth form
Branching
Height
1000–2000 mm
Leaf shape
Simple leaf (unlobed)
Leaf arrangement
Alternate
Leaf margin
Entire
Flower color
Purple
Flower diameter
30
Leaf color
Green
Availability of seeds and plants
Low
Form sold
Seedlings
Propagation
Cuttings
Sun exposure
Full sun
Water needs
Moderate
Soil needs
Required
Suitable uses
Rock garden, Bonsai, Potted plant
Diseases
Powdery mildew
Pests
Spider mites, Azalea lace bug, Rurichurenjihabachi, Benimonaoringa
Designated plants
Endemic to Japan

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

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