Passiflora citrina or Citrus-Yellow Passion Flower is one of the few Passiflora with yellow flowers.
It is not very hardy but easy to grow in pot and will flower profusely almost all year round.
The stems are hairy, angular and short.
The leaves are hairy, two-lobed or slightly three lobed and 2-12 cm x 1.5-10 cm. The petiole is up to 2 cm long.
The flowers grow singly or in pairs in the leaf axils of up to 4.5 cm long flower steal. The lemon yellow flower is 6 cm long and 6.5 cm wide. The flower tube is up to 1.3 cm long. The sepal is up to 3 x 0.5 cm. The petal is up to 3 x 0.3 cm. The corona consists of one or rarely two rows of corona. The outer row is pale yellow with a yellow tip, erect and 0.9 to 1.4 cm long. The inner row is (if present) is less than 2 mm long and is hidden in the flower tube. The flowers are pollinated by hummingbirds in their habitat.
The plant needs cross pollination to produce fruit. The fruit is an oval, somewhat hexagonal, reddish, to 4.5 x 2.5 cm big box fruit that pops open at full maturity.
Citrus-yellow Passion flower, Passionflower
Passiflora: composed of the Latin words passio (Passion) and flos (flower)
Jorullensis: derived from the Latin citrus (citrus, lemon tree)
Hilly, humid pine forests at 600-1.500 m altitude.
Almost year round
USDA zone 10, 0 °C
Nutritious and well drained
- proceed in spring or summer
- take cuttings from the top of the stems and make sure there is a knot with older wood present
- dip in cutting hormone (optional)
- put in light potting soil and moisten
- wrap the pot in a plastic bag to limit evaporation
- daily watering during the growth period
- give plenty of fertilizer: every 1 or 2 weeks
- is suitable for windowsill or temperate greenhouse