PlantFun
Plant Needs
Sunlight
Partial sun to full shade; tolerant of low subarctic light levels, avoid intense midday summer sun
Watering
Keep soil consistently moist to mimic boggy native habitat; avoid complete drying of root zone
Temperature
Extremely cold-hardy to subarctic temperatures; avoid prolonged heat above 22°C
Characteristics
- Leaf: Small oval leathery evergreen leaves with smooth margins, dark green above and pale undersides
- Flower: Bell-shaped pink or white flowers clustered in leaf axils
- Fruit: Round dark blue to black edible berries with a waxy protective bloom
Care Guide
Watering
Keep soil evenly moist; water 2–3 times weekly
Fertilization
Diluted acidic fertilizer once monthly. Avoid high-nitrogen fertilizers to prevent excessive leaf growth at the expense of fruiting
Coffee grounds compost tea：Use fully composted coffee grounds, dilute 1:20 for root drench to maintain soil acidity; avoid raw grounds to prevent mold growthPruning
- Thin overcrowded branches in early spring to improve airflow and light penetration
- Remove dead or damaged stems to encourage healthy new growth
- Trim lightly after fruiting to maintain a compact spreading shape
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Non-toxic; no documented adverse effects
Humans: No known toxic effects; berries are edible and nutrient-dense
Garden Uses & Culture
Culture: Berries have traditional use in subarctic Indigenous cuisine and for foraging
Usage: Edible berries for jams, pies, or fresh consumption; low-growing ornamental ground cover
