Gardening
in Tucson, Phoenix,
Arizona and California

Gardening in Tucson, Phoenix, Arizona and California

while line Back to Plant List

Growing Arizona Passionflower: Passiflora arizonica

social icons Facebook Twitter Pinterest Instagram

Overview

A member of the Passionflower family, the Passiflora genus has about 500 species, three of which are native in Arizona. Arizona Passionflower is unusual because it is a night bloomer.

Description

Form: Climbing vine.
Lifespan: Perennial.
Leaf retention: Deciduous.
Growth rate: Rapid.
Mature Size: 10' long.
Flowers: An elaborate structure up to two inches in diameter. Ten white petals with dozens of pale purple filaments, three white stigmatas (female), and five yellow-green stamens (pollen-bearing male). Fragrant. It opens late afternoon for the night and closes after pollination. It may remain open the next morning if not pollinated.
Bloom: Summer, early fall.
Fruit: Bell pepper-shaped, about one inch in diameter, poisonous when green. It turns yellowish and falls off the vine when ripe and edible. It contains a small amount of pulp, mildly sweet to tart with a delicate flavor, containing many small black seeds.
Leaves: Deeply cut with three major lobes, the two side lobes having secondary lobes, covered in fine hairs. Stinky odor if crushed.
Bracts: Flower buds and fruit are surrounded by thin, tendril-like, many-branched bracts, stinky if touched.
Stems: Hairy, dry to touch, reddish, no thorns, herbaceous, becoming woody with age, with tendrils that assist climbing.
Roots: Possible suckers from roots.
Wildlife: Attracts night-flying moths. Possible larval host to Gulf Fritillary butterfly.
Toxic / Danger: All parts are poisonous, containing cyanide, except ripe fruit.
Origin: Arizona and Mexico.

Cultivation and Uses

USDA hardiness zones: 8b-10. Dies to ground in hard freezes and regrows from roots.
Heat tolerant: Yes.
Drought tolerant: Somewhat. Depends on summer rains.
Sun: Full sun.
Water after becoming established: Once every two weeks to twice a week, depending on appearance. Needs more water when fruit are developing.
Soil: Well drained, tolerant but prefers organic matter, pH 6.6-7.8 (neutral to slightly alkaline).
Mulch: No.
Propagation: Seed, cuttings.
Uses: Native plant specimen.

Comments

Former scientific name Passiflora foetida var. arizonica. Seeds may take several years of freeze/heat and wet/dry cycles to germinate.
In the picture at top right, the flower is still in the process of opening and its filaments have not fully straightened.



Do you have additional information or a different experience for this plant that you would like to share?
Email info@gardenoracle.com. All contributions are welcome and appreciated.

Passiflora arizonica flower

Passiflora arizonica fruit

Passiflora arizonica leaf



copyright © GardenOracle.com
Latest update: May, 2019