Creeping Bellflower (Campanula rapunculoides)

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Sunlight Full sun to partial shade; tolerates dappled woodland shade but produces fewer blooms

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Watering Water deeply when the top 2 cm of soil feels dry; avoid waterlogging to prevent root rot

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Temperature Extremely cold hardy to -30°C; tolerates summer temperatures up to 30°C with adequate moisture

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Leaf: Basal leaves are heart-shaped with serrated edges; stem leaves are smaller, lanceolate
Flower: Violet-blue bell-shaped blooms, 2–3 cm long, arranged in upright racemes
Stem: Erect, hairy, with branching near the upper portion

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Watering

Keep soil evenly moist during active growth periods

Fertilization

Light, balanced feed once monthly. Avoid over-fertilizing to prevent excessive foliage growth at the expense of blooms

Eggshell powder topdressing：Crush dried eggshells into fine powder; sprinkle 1–2 tbsp around base of plants to boost soil calcium levels

Pruning

Deadhead spent blooms regularly to extend flowering period and reduce self-seeding
Cut back foliage to ground level in late autumn to prepare for winter dormancy
Dig up and remove excess rhizomes to control aggressive spreading in garden beds

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Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no reported toxicity

Humans: Non-toxic to humans; no known adverse health effects from ingestion or contact

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Culture: N/A

Usage: Ornamental garden plant; sometimes classified as an invasive species in North America due to rapid rhizome spread