EVERGREEN

Plant Encyclopedia

Ternstroemia gymnanthera

Ternstroemia gymnanthera ("Mokkoku")

Japanese name: モッコク (木斛)
Scientific name: Ternstroemia gymnanthera

Ternstroemia gymnanthera

[Overview]
An evergreen tree 10 m tall, found in evergreen broadleaf forests in coastal areas.
Young branches are tinged with red.
Leaves are simple and alternate, clustered at the branch tips, obovate, 4–6 cm long and 1.5–2.5 cm wide, with indistinct veins.
The leaves are thick, and the upper surface is slightly glossy.
The leaf margins are entire but sometimes wavy.
The leaf base runs down into the petiole, and the petiole is often tinged with reddish purple.
Flowers grow singly in the leaf axils or in the axils of leaf scars, and because the flower stalk is curved, they open sideways to downward.
The flowers are 5-petaled, white when they first open, and turn cream-colored as they age.
The fruit is spherical, 1–1.5 cm in diameter, ripens red, and usually splits open irregularly to reveal red seeds.

[History]
In the Edo period it was regarded as an important garden tree and counted as one of the "Edo Goboku" (Five Trees of Edo).

[Uses]
The leaves are used as a folk medicine.
The wood is reddish brown and is made into woodwork and the like.
The bark is used as a dye.

[Cultivation]
Propagate from seed.
The suitable planting area is the Kanto region and south.
It prefers sunny, well-drained, fertile, moderately moist sites.
Avoid places with strong afternoon sun and cold winter winds.
For potted plants, water thoroughly when the soil surface dries; for plants in the ground, rainfall is sufficient.
For fertilizer in winter, apply organic fertilizer around the plant.
Pests and diseases include leafrollers, scale insects and sooty mold.

Details

Names
Japanese: モッコク(木斛)、イイク
Life form
Tree
Evergreen / deciduous
Evergreen
Leaf type
Broadleaf
Habit
Terrestrial
Planting (or sowing) season
May, June, July, September, October
Flowering season
June, July
Fruiting season
October, November
Distribution or origin
Japan (Honshu: southern Kanto and west, Shikoku, Kyushu, Ryukyu), southern Korea, China, Southeast Asia
Growth form
Upright
Height
10000 mm
Leaf shape
Simple leaf (unlobed)
Leaf arrangement
Alternate
Leaf margin
Entire, Undulate
Inflorescence
Solitary
Number of petals
5
Flower color
Yellowish white, White
Fruit color
Red
Leaf color
Green
Availability of seeds and plants
Low
Form sold
Seedlings
Propagation
Seed
Sun exposure
Full sun
Water needs
Moderate
Soil needs
Required
Tolerance
Heat tolerance, Shade tolerance, Salt-spray tolerance, Exhaust gas tolerance
Suitable uses
Potted plant, Parks and gardens, Street trees
Hardiness zone
8b–11b
Diseases
Sooty mold
Pests
Leafrollers, Scale insects
Uses
Medicinal, Other crafts
Japan Flower Trade Code
22843

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

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