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climber

Blue passionflower

Passiflora caerulea

Climate-suitable non-native

Growing guidance

Horticultural figures below are practitioner estimates for planning, pending expert review. The botanical record further down is sourced and verifiable.

Current-climate suitability

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Future-climate resilience

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Sun

Full sun

Soil moisture

free-draining, average

Heat tolerance

Up to about 44°C

Cold tolerance

Down to about -8°C

Waterlogging tolerance

1/5

Drought tolerance

4/5

Mature size

4–8 m tall, 3 m spread

Seasonal interest

Summer to autumn · White and blue

Maintenance

medium

Wildlife supported

General wildlife value 4/5 (verified species relationships are shown only where structured data exists)

Known risks or warnings

Weedy in warm climates; unripe fruit is unpalatable.

Toxicity: mild

Verified botanical record

Accepted scientific name
Passiflora caerulea L.
Family
Passifloraceae (Malpighiales)
Rank and status
species · accepted
GBIF record
Taxon 2874199

Recorded as introduced in: Agulhas National Park, Albania, Augrabies Falls National Park, Azores, Açores, Bangladesh, Belgium, Bogotá, Bontebok National Park, California, Canary Is., Cape Provinces and 39 further regions

Ranges are exactly as recorded in the GBIF source checklists and may be incomplete for widely cultivated species.

Passiflora caerulea, the blue passionflower, bluecrown passionflower or common passion flower, is a species of flowering plant in the family Passifloraceae. It is native to South America and has been introduced elsewhere. It forms a vigorous, deciduous or semi-evergreen tendril-bearing vine growing to 10 m (33 ft) or more. Its leaves are palmately lobed, and its fragrant flowers are blue-white with a prominent fringe of coronal filaments in bands of blue, white, yellow, and brown. The ovoid orange fruit grows to 6 cm (2 in) across.

Description from Wikipedia — Passiflora caerulea (CC BY-SA), shortened and unedited in substance.

Native status and geographic context

  • United Kingdom: climate-suitable
  • United States: climate-suitable
  • Australia: restricted

Native status is never inferred from climate similarity. Plants restricted or invasive in a jurisdiction are excluded from recommendations there.

Demonstration data. Climate, plant and retailer records shown here are realistic samples awaiting horticultural validation and live data connections.