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PlantFiles: Passion Flower, Passionflower, Passion Vine, Passionvine
Passiflora x belotii 'Imperatrice Eugenie'

Family: Passifloraceae (pas-ih-flor-AY-see-ee) (Info)
Genus: Passiflora (pass-iff-FLOR-uh) (Info)
Species: x belotii (be-LOT-ee-eye) (Info)
Cultivar: Imperatrice Eugenie
Additional cultivar information: (aka Impratrice Eugnie, Empress Eugenie, Kaiserin Eugenie)

Synonym:Passiflora alato-caerulea
Synonym:Passiflora x alato-caerulea
Synonym:Passiflora munroi
Synonym:Passiflora x pfortii

One vendor has this plant for sale.

19 members have or want this plant for trade.

Vines and Climbers

20-30 ft. (6-9 m)

6-8 ft. (1.8-2.4 m)

USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
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)

Sun Exposure:
Sun to Partial Shade

Parts of plant are poisonous if ingested

Bloom Color:

Bloom Time:
Mid Spring
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall


Other details:
Average Water Needs; Water regularly; do not overwater
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant

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:
Unknown - Tell us

Propagation Methods:
From softwood cuttings
From semi-hardwood cuttings
By simple layering
By air layering

Seed Collecting:
Allow unblemished fruit to ripen; clean and dry seeds
Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds

Click thumbnail
to view:

By Tim
Thumbnail #1 of Passiflora x belotii by Tim

By Calalily
Thumbnail #2 of Passiflora x belotii by Calalily

By Bugguy
Thumbnail #3 of Passiflora x belotii by Bugguy

By Thaumaturgist
Thumbnail #4 of Passiflora x belotii by Thaumaturgist

By Thaumaturgist
Thumbnail #5 of Passiflora x belotii by Thaumaturgist

By lunavox
Thumbnail #6 of Passiflora x belotii by lunavox

By SunshineSue
Thumbnail #7 of Passiflora x belotii by SunshineSue

There are a total of 34 photos.
Click here to view them all!


4 positives
1 neutral
No negatives

Gardeners' Notes:

Positive Heeve On Nov 10, 2013, Heeve from Sebring, FL (Zone 9b) wrote:

While difficult if not impossible to fruit (Even hand pollinating didn't work), the large, alien like flowers are simply amazing and among the most fragrant I've run across having an extremely exotic aroma that wafts throughout especially when the springtime bloom comes and there are so many flowers. Simply putting them to your nose and smelling them has a very calming effect!

Zebra Longwings, Gulf Fritiliary and Monarchs will flock to them in the fall here if butterflies are your thing.

Unfortunately for me, I have an infestation of Abrus vine on part of my rear fence, but being diligent about training the Bilotii has finally stemmed the tide of the Abrus and even started turning it so that the Passion flower is becoming dominant in some areas.

Highly recommended if fragrant flowers are what you're looking for. They do take some work to keep in check however, but well worth the effort if you ask me.

Positive xisting4me On Sep 19, 2012, xisting4me from Midland, MI wrote:

This is my favorite Passiflora....I think......I have a mix of vitofolia...alato....alato-ceurula....incarnata....lady margaret of these the incarnata or maypop is eaten bare consistantly by the gulf fritilaries and the lady margaret a little......the rest they have left alone...they seem to have favorites....great plants

Neutral mjsponies On Jul 14, 2009, mjsponies from DeLand/Deleon Springs, FL (Zone 8b) wrote:

I've been very impressed w/ this Passi. It has bloomed here thru a extra hot humid summer non stop. When my other Passi's are panting this one just goes HA ! bring it on. Nice as the Gulf Frits are rampant this year, munching on every passi I have, so while it's a bit leaf bare, the flowers more than make up for it.

Positive Bugguy On Oct 6, 2002, Bugguy from Temecula, CA (Zone 9a) wrote:

This variety (a hybrid of P. alata and P. caerulea) has been growing successfully against a block wall in my garden for many years. It has been exposed to occasional frosts here in Hemet, California (U.S.) as well as prolonged periods of extreme heat (105F+) during the summer months. Last year (2001) it was exposed to three straight nights of 29-33F temps without cover. Naturally many of the more exposed leaves and stems died back but the plant rebounded in the spring/summer 2002 very well. I consider this plant to be one of the hardier Passiflora species. In addition, the flowers are beautiful and fragrant, and bloom throughout the summer and early fall.

I have seen this variety for sale at nurseries as P. alato-caerulea and/or P. pfordtii instead of the more recently accepted P. x belotii

Gulf Fritillary butterflies (Agraulis vannillae) commonly (and exclusively) utilize this and other Passiflora species as a larval host plant.

Positive vajralinga On Jul 18, 2002, vajralinga wrote:

Passiflora x belotii 'Imperatrice Eugenie' (the name was devoted to the wife of Emperor Napoleon III. of France) is one of the most beautiful Passion Flowers. The fragance of the very ornamental flowers (that are larger than those of Passiflora coerulea) is very delicate and the whole flowering plant looks very "romantic". It should be placed in a way that the flowers are looked at from a near distance because the colours are not bright. The culture and propagation by cuttings is rather easy, but in my experience this Passion Flower is far more sensitive to cold temperature as it is stated above. In winter at best it should be kept in a cool place, but protected from frost.


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

Letohatchee, Alabama
Glendale, Arizona
Phoenix, Arizona
Citrus Heights, California
Manhattan Beach, California
Redlands, California
Sacramento, California
San Diego, California
Brandon, Florida
Deland, Florida
Groveland, Florida
Jacksonville, Florida
Jupiter, Florida
Rockledge, Florida
Saint Cloud, Florida
Saint Petersburg, Florida
Sanford, Florida
Sebring, Florida
Tampa, Florida
Winter Springs, Florida
Albany, Georgia
Marietta, Georgia
Dearborn Heights, Michigan
Saint Clair Shores, Michigan
Buffalo, New York
Cincinnati, Ohio
Marble Falls, Texas
Kalama, Washington

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