Trailing petunia Plant Care
Calibrachoa longistyla Stehmann & Greppi
Updated · Sources · How we source care data
With delicate, elongated leaves and vibrant trumpet-shaped flowers, this plant hails from South America. Plant collectors are drawn to its unique longistyla variety for its stunning beauty and ability to attract pollinators to the garden.
Every 3–7 days
Full sun to part shade
60–80°F
40–70%
At a glance
How do you care for Trailing petunia?
Water Trailing petunia every 3–7 days, letting the top layer of soil dry out between waterings, and give it full sun to part shade. It prefers temperatures of 60–80°F (16–27°C) and 40–70% humidity. Fertilize it every month during the growing season.
What Is the Trailing petunia?
Trailing petunia (Calibrachoa longistyla) belongs to the Solanaceae family within the Calibrachoa genus. Trailing petunia is native to South America. Trailing petunia is also known as Million Bells.
Trailing petunia displays a trailing, spreading growth habit, reaching up to 1 ft tall with a spread of approximately 2 ft. Trailing petunia produces abundant small petunia-like flowers in various colors.
Leaf size: approximately 2 inches.
How Often Should You Water a Trailing petunia?
Calibrachoa longistyla requires watering every 3–7 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 3–7 days
Let soil partially dry between waterings
What Light Does the Trailing petunia Need?
Trailing petunia thrives in full sun to part shade.
Light Requirement
Full sun to part shade
What Temperature and Humidity Does the Trailing petunia Prefer?
Calibrachoa longistyla grows best at temperatures of 60–80°F. Trailing petunia prefers humidity levels of 40–70%.
Temperature
60–80°F
Humidity
40–70%
What Soil Mix Works Best for a Trailing petunia?
Well-draining, fertile soil mix with added perlite for improved drainage. Good drainage is essential for Trailing petunia to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Trailing petunia?
Feed Trailing petunia every month 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 month
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Trailing petunia?
Repot annually in 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 Trailing petunia?
Trailing petunia can be propagated through stem cuttings, seeds. Similar propagation techniques also apply to million bells plant care, which shares the same genus.
Is the Trailing petunia Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Trailing petunia, 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 Trailing petunia?
Trailing petunia is susceptible to aphids, spider mites, whiteflies. 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.
Keep exploring plants
Trailing petunia 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 Calibrachoa genus — compare its care with other Calibrachoa species on PlantoScan.
Calibrachoa is part of the Solanaceae plant family — browse all Solanaceae genera and species.
Trailing petunia thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Calibrachoa longistyla Stehmann & Greppi, family Solanaceae (first published in Phytotaxa 25: 34. 2011.) — World Flora Online record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Trailing petunia, 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.
- 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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