PlantFun
Plant Needs
Sunlight
Full sun to partial shade; full sun supports optimal fruit production; tolerates cool, overcast conditions
Watering
Water deeply when the top 5 cm of soil is dry; avoid waterlogging to prevent root rot
Temperature
Extremely cold-hardy; withstands temperatures as low as -40°C; prefers cool summer temperatures below 25°C
Characteristics
- Leaf: Oval, blue-green, opposite arrangement; soft, matte texture
- Flower: Small, creamy-white, tubular blooms; lightly fragrant
- Fruit: Elongated blue berries, edible, tart-sweet flavor
Care Guide
Watering
Keep soil consistently moist during fruiting season to support berry development
Fertilization
Apply well-rotted compost in early spring to boost soil fertility. Use low-nitrogen amendments to prioritize fruit production over leaf growth
Eggshell powder topdress：Crush dried eggshells into fine powder; sprinkle 1–2 tbsp around the base of the shrub; gently work into topsoil to avoid disturbing rootsPruning
- Prune dead or damaged branches in late winter before new growth emerges
- Thin overcrowded stems to improve airflow and light penetration for better fruiting
- Remove old, non-fruiting wood to encourage new productive growth
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Non-toxic to cats; no reported adverse effects
Humans: No known toxicity to humans; berries are edible when ripe
Garden Uses & Culture
Culture: N/A
Usage: Edible fruit for jams, jellies, or fresh eating; ornamental garden shrub
