EVERGREEN

Plant Encyclopedia

Gaultheria pyroloides

Gaultheria pyroloides ("Shiratamanoki")

Japanese name: シラタマノキ (白玉木)
Scientific name: Gaultheria pyroloides

Gaultheria pyroloides

[Overview]
An evergreen dwarf shrub often found on sunny, dry rocky ground in the subalpine to alpine zones.
It forms colonies with Akamono, Iso-tsutsuji and others.
The whole plant has a distinctive smell like methyl salicylate, which is used in poultices and similar products, and the smell is especially strong in the fruit.
The stems creep along the ground, and the upper parts rise to a height of 10–20 cm.
Leaves are simple and alternate, elliptic and about 2 cm long, thick, with the upper surface sunken along the veins and the underside tinged with white.
The leaf margins have small blunt serrations.
Racemes 2–6 cm long arise from upper leaf axils or branch tips and bear 2–6 flowers.
The flowers face downward, are urn-shaped and white.
The tip of each anther has 4 spiny projections.
Each flower has 1 scale-like bract and 2 small bracts.
The fruit is a capsule, but the calyx swells and encloses the fruit, forming a spherical berry-like structure 1 cm in diameter.
The fruit is white, sometimes tinged with pink.

[Cultivation]
Propagate from seed or by cuttings.
It prefers a sunny, well-drained, well-ventilated place, but in warm regions it is best kept cool in partial shade in summer.
Also protect it from dry cold winds in winter.
Water when the soil surface dries, taking care to avoid heat and humidity; in summer, water in the evening or later, once the temperature has dropped.
Do not let it become extremely dry in winter either.
Fertilize sparingly: either place slow-release fertilizer or organic fertilizer on the soil in spring, or give diluted liquid fertilizer once every 2 weeks in spring and autumn, making sure no fertilizer remains in midsummer.
There are no particular pests or diseases.

Details

Names
Japanese: シラタマノキ(白玉木)、シロモノ
Life form
Shrub
Evergreen / deciduous
Evergreen
Leaf type
Broadleaf
Habit
Terrestrial
Planting (or sowing) season
March, April, October, November
Flowering season
June, July
Distribution or origin
Japan (Hokkaido, Honshu: Chubu region and north, Mt. Hoki-Daisen), southern Kuril Islands, Kuril Islands, Aleutian Islands, Sakhalin
Growth form
Creeping
Height
100–200 mm
Leaf shape
Simple leaf (unlobed)
Leaf arrangement
Alternate
Leaf margin
Serrate
Inflorescence
Raceme
Flower color
White
Flower diameter
20–60
Fruit color
Pink, White
Leaf color
Green
Availability of seeds and plants
Low
Form sold
Seedlings
Propagation
Seed, Cuttings
Sun exposure
Full sun, Partial shade
Water needs
Moderate
Soil needs
Required
Tolerance
Cold tolerance
Suitable uses
Ground cover, Rock garden, Potted plant
Japan Flower Trade Code
21100

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

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