Photo: Илья РуденкоCC BY 4.0via iNaturalistresized / cropped
Collina Bellflower Plant Care
Campanula collina Sims
Updated · Sources · How we source care data
With its heart-shaped leaves and delicate bell-shaped flowers, this plant hails from the hillsides of Europe and Asia. Plant collectors are drawn to Campanula collina for its stunning blue or purple flowers that bloom in clusters, adding a pop of color to any garden.
Every 7–10 days
Full sun to partial shade
50–75°F
40–60%
At a glance
How do you care for Collina Bellflower?
Water Collina Bellflower every 7–10 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 50–75°F (10–24°C) and 40–60% humidity. Fertilize it every 6 months during the growing season.
Where Is the Collina Bellflower Native To?
What Is the Collina Bellflower?
Collina Bellflower (Campanula collina) belongs to the Campanulaceae family within the Campanula genus. Collina Bellflower is native to the Caucasus and north-eastern Turkey. Collina Bellflower is also known as Mountain Bellflower.
Collina Bellflower displays an upright, spreading perennial growth habit, reaching up to 1 ft tall with a spread of approximately 1 ft. Collina Bellflower produces bell-shaped flowers in various colors like blue, purple, pink, or white.
Leaf size: approximately 3 inches.
How Often Should You Water a Collina Bellflower?
Campanula collina requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–10 days
Let soil partially dry between waterings
What Light Does the Collina Bellflower Need?
Collina Bellflower thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Collina Bellflower Prefer?
Campanula collina grows best at temperatures of 50–75°F. Collina Bellflower prefers humidity levels of 40–60%.
Temperature
50–75°F
Humidity
40–60%
What Soil Mix Works Best for a Collina Bellflower?
Well-draining, fertile soil with added compost for nutrients. Good drainage is essential for Collina Bellflower to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Collina Bellflower?
Feed Collina Bellflower every 6 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Collina Bellflower?
Repot every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Collina Bellflower?
Collina Bellflower can be propagated through seeds, division of clumps, stem cuttings. Similar propagation techniques also apply to fairy's thimble plant care, which shares the same genus.
Is the Collina Bellflower Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Collina Bellflower, 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 Collina Bellflower?
Collina Bellflower is susceptible to aphids, slugs, snails. 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 Collina Bellflower Need?
Collina Bellflower grows outdoors in USDA Zone 4a – 8b. It survives winters down to planting zone 4a. Collina Bellflower is native to the Caucasus and north-eastern Turkey.
Hardiness Zone
Zone 4a – 8b
Keep exploring plants
Collina Bellflower 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 Campanula genus — compare its care with other Campanula species on PlantoScan.
Campanula is part of the Campanulaceae plant family — browse all Campanulaceae genera and species.
Collina Bellflower thrives in bright light and direct sun — see other bright-light plants.
More Campanula Species
Other Campanula species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Campanula collina Sims, family Campanulaceae (first published in Bot. Mag. 24: t. 927 (1806)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Collina Bellflower, 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.
- Photo: Илья Руденко, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 4a – 8b, estimated from the plant's typical growing conditions.
- 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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