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The Plant Guide

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Blue passion flower

Passiflora caerulea

pass-ih-FLOOR-ah sir-EW-lee-ah

This plant produces 3- to 4-inch-diameter, slightly scented flowers sporadically during summer, increasing in late summer through autumn. Intricate blossoms have an outer ruffle of petals and sepals; an inner disc of filaments composed of rings of blue, white and purple; and a central “antenna.” Deeply lobed dark green leaves cover stems that grasp supports with tendrils. Blue passion flower can reach 10 feet tall in one season. The ovoid, orange-yellow fruit is edible.

CareOften grown as a houseplant, it can also be grown as an annual outdoors. Grow in a greenhouse border or in containers. Or set outdoors in moderately fertile, moist but well-drained soil. Shelter from cold, drying winds.

PropagationSemi-ripe cuttings in summer. Layer in spring or autumn.

ProblemsSpider mites, whiteflies, and scale insects. Leaf spots, iron deficiency, and virus diseases.

  • Genus : Passiflora
  • Plant Height : 10 to 15 feet
  • Zones : 6, 7, 8, 9
  • Uses : Containers
  • Moisture : Dry to Medium
  • Growth Rate : Fast
  • Characteristics : Fragrant Flowers, Showy Foliage, Showy Fruit
  • Light : Full Sun
  • Flower Color : Pink, White
  • Bloom Time : Summer
  • Plant Seasonal Interest : Summer Interest
  • Plant Type : Vines
View Comments


  1. maryapodaca 04/11/2016

    My passion vine made it through the Tallahassee winter (it got below freezing a couple of times) and I saw the first flower today. Many buds ready to bloom -- it's only April.

  2. marquesedillinger 05/02/2017

    Found this plant growing in my backyard....been living here over 30 years, but glad it made an appearance....zebra longwings seem to prefer this plant over purple passionflowers

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