Gaultheria adenothrix Plant Care

Gaultheria adenothrix Maxim.

Updated · Sources · How we source care data

Gaultheria adenothrix, known as アカモノ (akamono) or イワハゼ (iwahaze), is a small evergreen shrub in the Ericaceae. It is one of three Gaultheria species native to Japan and grows in low-mountain to subalpine areas.

🌿Shrubs
Water

Every 4–7 days

Light

Partial to full shade

Temp

50–75°F

Humidity

40–60%

At a glance

How do you care for Gaultheria adenothrix?

Plant Gaultheria adenothrix in partial to full shade (USDA zones 12a) and water a young shrub every 4–7 days until it is established. It tolerates temperatures of 50–75°F (10–24°C). Fertilize it every 6 months during the growing season.

Where Is the Gaultheria adenothrix Native To?

Native range1 country

What Is the Gaultheria adenothrix?

Gaultheria adenothrix (Gaultheria adenothrix) belongs to the Ericaceae family within the Gaultheria genus. Gaultheria adenothrix is native to Japan and grows in low-mountain to subalpine areas.

Gaultheria adenothrix displays a low spreading shrub growth habit, reaching up to 1.5 ft tall with a spread of approximately 2 ft. Gaultheria adenothrix produces small white or pink bell-shaped flowers.

Leaf size: approximately 2 inches.

How Often Should You Water a Gaultheria adenothrix?

Water a young or newly planted Gaultheria adenothrix every 4–7 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Watering Frequency

Every 4–7 days

Until established; then in dry spells

What Light Does the Gaultheria adenothrix Need?

Gaultheria adenothrix thrives in partial to full shade. The optimal light range is 100–500 lux. Avoid placing Gaultheria adenothrix in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Light Requirement

Partial to full shade

100–500 lux

What Temperature and Humidity Does the Gaultheria adenothrix Prefer?

Gaultheria adenothrix tolerates temperatures of 50–75°F. Gaultheria adenothrix prefers humidity levels of 40–60%.

Temperature

50–75°F

Humidity

40–60%

What Soil Mix Works Best for a Gaultheria adenothrix?

Well-draining acidic soil with high organic matter content. Good drainage is essential for Gaultheria adenothrix to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Gaultheria adenothrix?

Feed Gaultheria adenothrix every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.

Stop feeding by late summer so new growth can harden before winter.

Fertilizing

Every 6 months

During the growing season

The PlantoScan app can remind you when to water and when to fertilize each plant.

Where Should You Plant a Gaultheria adenothrix?

Choose a spot with partial to full shade and well-draining acidic soil with high organic matter content. Avoid low spots where water collects after rain.

Gaultheria adenothrix is suited to USDA Zone 12a.

Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.

How Far Apart Should You Plant a Gaultheria adenothrix?

Gaultheria adenothrix can spread to about 2 ft (0.6 m) and reach about 2 ft (0 m) tall. Space plants about 2 ft (0.6 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.

Planning a row or hedge? Try the plant spacing calculator.

How Do You Prune a Gaultheria adenothrix?

Prune Gaultheria adenothrix while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.

If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.

How Do You Care for a Gaultheria adenothrix in Winter?

Gaultheria adenothrix is frost-tender (hardy to USDA zone 12). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

How Do You Propagate a Gaultheria adenothrix?

Gaultheria adenothrix can be propagated through seeds, division of clumps, stem cuttings. Similar propagation techniques also apply to salal plant care, which shares the same genus.

Is the Gaultheria adenothrix Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Gaultheria adenothrix, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.

This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.

See all plants toxic to cats and plants toxic to dogs.

What Pests and Diseases Affect the Gaultheria adenothrix?

Gaultheria adenothrix is susceptible to spider mites, aphids, powdery mildew. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

What USDA Hardiness Zone Does the Gaultheria adenothrix Need?

Gaultheria adenothrix grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Gaultheria adenothrix is native to Japan and grows in low-mountain to subalpine areas. In cooler regions, grow Gaultheria adenothrix as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 12a

Keep exploring plants

Gaultheria adenothrix is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Gaultheria genus — compare its care with other Gaultheria species on PlantoScan.

Gaultheria is part of the Ericaceae plant family — browse all Ericaceae genera and species.

Gaultheria adenothrix copes with lower light than most plants — browse the full list of low-light plants.

More Gaultheria Species

Other Gaultheria species in PlantoScan's care catalogue share similar watering, light, and soil preferences:

Sources

  • Scientific name & taxonomy: Gaultheria adenothrix Maxim., family Ericaceae (first published in Bull. Acad. Imp. Sci. Saint-Pétersbourg , sér. 3, 18: 44 (1872)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Gaultheria adenothrix, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
  • Hardiness zone: USDA Zone 12a, calculated from the plant's minimum temperature.
  • Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.

Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.

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