Passiflora racemosa

Passiflora racemosa

Passiflora racemosa or Red Passion Flower has the most beautiful bright red flowers.

It is one of over 400 species of the genus Passiflora.

Is not frost resistant but can be grown in a heated greenhouse or as a house plant.


Passiflora racemosa is a vine with delicate tendrils of 10 m long or more, rarely more than 5 m in culture.

The evergreen leaves are ovate, glossy, with a wavy edge and measure about 9 cm long and wide.

Flowers appear in summer and autumn, hanging in clusters of 30 cm long with 8-12 flowers each. The flowers have a diameter of 13 cm, 10 red petals and sepals.  The corona filaments are in three ranks, the outer one purple with white tips, the inner ones shorter and green. They hang in opposite pairs on the raceme and bloom all summer and fall.

Fruit is green, narrowly ovoid, about 7 cm long and 3 cm wide.




Common name:

Passion Flower, Passionflower, Red Passion Flower, Red Passionflower


Passiflora princeps


Passiflora: from the Latin passio (Passion) and flos (flower)
Racemosa: from the Latin racēmōsus (full of clusters, clustering)




Humid forest


USDA zone 10-11



Nutritious, well drained


Sun, light


Water daily in summer


Sun, light


Fertilize weekly during growing season, monthly in winter


Flowering occurs on 2 year old wood, keep this in mind when pruning.


Root growth is inhibited in a small pot and flowering encouraged


Can be grown in heated greenhouse or as house plant where it can bloom all year round


Seed, cutting

Sowing instructions:

  • use preferably fresh seeds
  • scarify the seeds with sandpaper or sand
  • soak the seeds in water at room temperature for 24h
  • plant in potting soil, a 1 cm depth
  • provide soil heating and switch the heating off at night so that the temperature fluctuates
  • keep the substrate moist
  • do not discard the seeds if they have not germinated after a few months, it can take more than 6 months

Cutting instructions:

  • take cuttings in spring or summer
  • take cuttings at the top of the stems and make sure there is a node or a heel of older wood
  • dip the cutting in a hormone for cuttings (optional)
  • plant in a light potting soil and moisten
  • wrap everything in a plastic bag to retain moisture until the cutting is rooted

Image sources

  • Passiflora racemosa: Dryas

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