Creeping Gaultheria (Coin-leaved Gaultheria) care

Light

The Goldilocks zone. Not the south-facing windowsill (too hot, too direct), not the back of the room (too dim, growth stalls). Prefers shade to semi-shade; in its native habitat it grows beneath open woodland canopy. Avoid direct sun, which scorches the small rounded leaves and dries the shallow roots. If you can't decide, a free phone lux-meter app aimed at the leaf at noon should read between 800 and 1,500 lux.

Watering

Watering creeping gaultheria: regularly; soil must not dry out. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Keep soil consistently moist but not waterlogged; use rainwater or low-lime water where tap water is alkaline. A deep mulch of leaf mould or composted bark helps retain moisture.

Soil and pot

Creeping Gaultheria grows best in moist, humus-rich, acidic, well-drained, lime-free soil. Use ericaceous compost mixed with horticultural grit. pH should be 4.5–5.5. Any lime in the soil rapidly causes yellowing and plant collapse. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Creeping Gaultheria sits happiest at around High humidity and -5 to 20°C (23 to 68°F). Originates from high-altitude moist-cloud conditions; grow in a sheltered, humid corner or a cool north-facing aspect. Dry air combined with cold winds is the quickest way to lose this plant in UK gardens. If you keep the room above year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed creeping gaultheria sparingly. Feed sparingly with a dilute ericaceous liquid fertiliser once in spring; this plant is adapted to nutrient-poor mountain soils and resents overfeeding. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on creeping gaultheria in the Growli community. Each is annotated with the most common cause so you know where to start.

• Winter kill in cold or exposed positions — This high-altitude species tolerates only brief, light frosts; prolonged cold below -5°C, or cold drying winds, will kill exposed growth. In the UK, protect with horticultural fleece and ensure a well-drained root zone to prevent frost-rot.
• Soil alkalinity and chlorosis — Even slight lime contamination triggers interveinal chlorosis and gradual decline. Test soil pH annually and acidify with sulphur chips or ericaceous compost top-dressing; always use lime-free water.

Propagation

Root tip cuttings in late summer in a damp, lime-free propagating mix; alternatively peg down rooting stems as layers. Seed can be sown on the surface of moist, lime-free compost in autumn and kept in a cold frame. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Creeping Gaultheria is toxic to pets. Like all Gaultheria species, G. nummularioides contains gaultherinin which releases methyl salicylate on hydrolysis. Methyl salicylate is toxic to cats and dogs, with cats being especially sensitive due to slow salicylate metabolism. Symptoms include vomiting, gastric haemorrhage, hepatotoxicity, anaemia, and respiratory signs. Do not allow pets to graze on foliage or berries. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Creeping Gaultheria deep-dive guides

Every aspect of creeping gaultheria care, each with its own calibrated guide:

• Common creeping gaultheria problems & fixes
• Creeping Gaultheria watering schedule
• Creeping Gaultheria light requirements
• Best soil mix for creeping gaultheria
• Creeping Gaultheria fertilizing guide
• When to repot creeping gaultheria
• How to propagate creeping gaultheria
• How to prune creeping gaultheria
• What's eating my creeping gaultheria?
• Creeping Gaultheria growth rate & size
• Creeping Gaultheria cold hardiness
• Creeping Gaultheria temperature & humidity
• Is creeping gaultheria toxic to cats & dogs?
• Is creeping gaultheria toxic to cats?
• Is creeping gaultheria toxic to dogs?
• All 16 Gaultheria varieties
• Getting creeping gaultheria to bloom

Featured in these plant shortlists

Creeping Gaultheria qualifies for 5 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best low-light houseplants — Houseplants that need no direct sun and cope with a north-facing room or a spot well back from a window.
• Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
• Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
• Houseplants toxic to cats & dogs — The common houseplants the ASPCA lists as toxic to cats and dogs — the ones to keep out of reach, each with its symptoms and a safe alternative.
• Best houseplants for a cool room — Houseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Creeping Gaultheria is also commonly called Creeping Gaultheria or Coin-leaved Gaultheria.

• Geranium phaeum care — light, water and common problems
• Geranium phaeum 'Lily Lovell' care — light, water and common problems
• Geranium phaeum 'Album' care — light, water and common problems
• All 10153 plant care guides in the Growli library