PlantFiles is getting a new look! Just in time for spring, we're rolling out a new look for the best online plants database. It will also work with your smart phones and mobile devices, so now you can take it with you on garden center visits or botanical garden tours. Questions or comments? Please post them here.

Passion Flower, Passionflower, Passion Vine, Passionvine
Passiflora 'Allardii'

Family: Passifloraceae (pas-ih-flor-AY-see-ee) (Info)
Genus: Passiflora (pass-iff-FLOR-uh) (Info)
Cultivar: Allardii


Tropicals and Tender Perennials

Vines and Climbers


15-20 ft. (4.7-6 m)

20-30 ft. (6-9 m)


4-6 ft. (1.2-1.8 m)


USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Sun to Partial Shade


Parts of plant are poisonous if ingested

Bloom Color:


White/Near White

Bloom Time:

Blooms all year





Other details:

This plant is attractive to bees, butterflies and/or birds

Flowers are fragrant

This plant is suitable for growing indoors

Average Water Needs; Water regularly; do not overwater

Provides winter interest

Suitable for growing in containers

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:


Propagation Methods:

From herbaceous stem cuttings

From woody stem cuttings

From softwood cuttings

From seed; germinate in a damp paper towel

By air layering

By stooling or mound layering

Seed Collecting:

Allow unblemished fruit to ripen; clean and dry seeds


This plant has been said to grow in the following regions:

Orange Park, Florida

Ocean Springs, Mississippi

Austin, Texas

Bellaire, Texas

Sterling, Virginia

Virginia Beach, Virginia

show all

Gardeners' Notes:


On Mar 15, 2010, LeslieT from Bellaire, TX wrote:

I've tried a number of passion vines, native and different cultivars; this is the ONLY one that hasn't seeded everywhere in my Houston-area garden. Some fancy cultivars rarely bloomed. P. Allardii bloomed almost constantly in my garden. For over five years I enjoyed it in two places with not a single seedling popping up. This cold winter appears to have killed it; there's no sign it's coming back from its roots although I would love it if it would. I'd originally purchased it from Kartuz Greenhouse which is sold out of them.


On Oct 3, 2006, stephem from Virginia Beach, VA (Zone 7a) wrote:

Negative because I don't want it. It was here when we bought the house. It just won't die. We've cut it down, put plastic over it, we don't even water it and it always finds a way. The flowers are pretty - looks like an alien flower. It's viney and in Virginia beach, in my back yard, it just keeps going on.