Gargano Bellflower (Campanula garganica)

Photo: nevwrightCC BY 4.0via iNaturalistresized / cropped

Gargano Bellflower Plant Care

Campanula garganica Ten.

Updated · Sources · How we source care data

With its striking bell-shaped flowers in shades of violet and blue, this plant originates from the rocky cliffs of the Gargano Peninsula in Italy. Plant collectors are drawn to Campanula garganica for its delicate appearance and ability to thrive in rocky, well-drained soil, making it a unique addition to any garden.

🌼Perennials🌻Annuals
Water

Every 7–10 days

Light

Full sun to partial shade

Temp

50–75°F

Humidity

40–60%

At a glance

How do you care for Gargano Bellflower?

Water Gargano 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 Gargano Bellflower Native To?

Native range14 countries

What Is the Gargano Bellflower?

Gargano Bellflower (Campanula garganica) belongs to the Campanulaceae family within the Campanula genus. Gargano Bellflower is native to Southern Europe.

Gargano Bellflower displays an upright, spreading perennial growth habit, reaching up to 1 ft tall with a spread of approximately 1 ft. Gargano 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 Gargano Bellflower?

Campanula garganica 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 Gargano Bellflower Need?

Gargano Bellflower thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Gargano Bellflower Prefer?

Campanula garganica grows best at temperatures of 50–75°F. Gargano Bellflower prefers humidity levels of 40–60%.

Temperature

50–75°F

Humidity

40–60%

What Soil Mix Works Best for a Gargano Bellflower?

Well-draining, fertile soil with added compost for nutrients. Good drainage is essential for Gargano Bellflower to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Gargano Bellflower?

Feed Gargano 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 Gargano 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 Gargano Bellflower?

Gargano 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 Gargano Bellflower Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Gargano 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 Gargano Bellflower?

Gargano 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 Gargano Bellflower Need?

Gargano Bellflower grows outdoors in USDA Zone 5a – 9b. It survives winters down to planting zone 5a. Gargano Bellflower is native to Southern Europe.

Hardiness Zone

Zone 5a – 9b

Keep exploring plants

Gargano 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.

Gargano 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 garganica Ten., family Campanulaceae (first published in Index Seminum (NAP, Neapolitano) 1827: 3 (1827)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Gargano 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: nevwright, CC BY 4.0, iNaturalist — original.
  • Hardiness zone: USDA Zone 5a – 9b, 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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