Image: AI generated
Blue Passion Flower Plant Care
Passiflora caerulea L.
Updated · Sources · How we source care data
Passiflora caerulea, the blue passionflower, bluecrown passionflower or common passion flower, is a species of flowering plant in the family Passifloraceae. It is native to South America and has been introduced elsewhere.
Every 4–7 days
Full sun to partial shade
60–85°F
50–80%
At a glance
How do you care for Blue Passion Flower?
Water Blue Passion Flower every 4–7 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 60–85°F (16–29°C) and 50–80% humidity. Fertilize it every 4 months during the growing season.
Where Is the Blue Passion Flower Native To?
What Is the Blue Passion Flower?
Blue Passion Flower (Passiflora caerulea) belongs to the Passifloraceae family within the Passiflora genus. Blue Passion Flower is native to South America and has been introduced else. Blue Passion Flower is also known as Blue Passionflower, Common Passionflower, Common Passion Flower.
Blue Passion Flower displays a vigorous climbing vine growth habit, reaching up to 20 ft tall with a spread of approximately 10 ft. Blue Passion Flower produces unique, intricate, colorful flowers with a central crown-like structure.
Leaf size: approximately 6 inches.
How Often Should You Water a Blue Passion Flower?
Passiflora caerulea requires watering every 4–7 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 4–7 days
Let soil partially dry between waterings
What Light Does the Blue Passion Flower Need?
Blue Passion Flower thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Blue Passion Flower Prefer?
Passiflora caerulea grows best at temperatures of 60–85°F. Blue Passion Flower prefers humidity levels of 50–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–85°F
Humidity
50–80%
What Soil Mix Works Best for a Blue Passion Flower?
Well-draining, fertile soil with added organic matter such as compost or well-rotted manure. Good drainage is essential for Blue Passion Flower to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Blue Passion Flower?
Feed Blue Passion Flower every 4 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 4 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 Blue Passion Flower?
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 Blue Passion Flower?
Blue Passion Flower can be propagated through softwood cuttings, seeds. Similar propagation techniques also apply to maypop plant care, which shares the same genus.
Is the Blue Passion Flower Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Blue Passion Flower, 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 Blue Passion Flower?
Blue Passion Flower is susceptible to aphids, spider mites, caterpillars. 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 Blue Passion Flower Need?
Blue Passion Flower grows outdoors in USDA Zone 6a – 11b. It survives winters down to planting zone 6a. Blue Passion Flower is native to South America and has been introduced else.
Hardiness Zone
Zone 6a – 11b
Keep exploring plants
Blue Passion Flower 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 Passiflora genus — compare its care with other Passiflora species on PlantoScan.
Passiflora is part of the Passifloraceae plant family — browse all Passifloraceae genera and species.
Blue Passion Flower 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: Passiflora caerulea L., family Passifloraceae (first published in Sp. Pl. : 959 (1753)) — World Flora Online record, IPNI name record, Wikidata.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Blue Passion Flower, 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: AI-generated illustration (labelled on the image).
- Hardiness zone: USDA Zone 6a – 11b, 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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