Passiflora alata
Passiflora alata
Winged-stem passion flower
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Taxonomy
Family Passifloraceae · Genus Passiflora
Common Names
Winged-stem passion flowerFragrant granadilla
Context
nativeRegion
Tropical rainforests of South America (primarily Brazil).
usdaZones
10–12.
companionPlants
Jasminum spp., Clerodendrum spp., Bougainvillea spp.
culturalUses
Grown for ornamental flowers and edible fruit ('fragrant granadilla'); used in traditional medicine.
Care
Care Requirements
LightPrefers full sun to partial shade for optimal flowering and growth.
WateringWater regularly to keep soil consistently moist but not waterlogged; reduce frequency in winter.
SoilWell-draining, fertile soil that's rich in organic matter; slightly acidic to neutral pH.
FertilizerApply balanced liquid fertilizer every 2-4 weeks during growth season (spring and summer).
HumidityThrives in moderate to high humidity; mist if air is dry.
TemperatureWarm temperatures between 18–28°C (65–82°F); protect from frost.
Growth & Life Cycle
HabitVigorous, evergreen climbing vine with tendrils.
Mature SizeUp to 6–9 meters (20–30 feet) in length.
Growth RateFast-growing under optimal conditions.
BloomingLarge, fragrant red flowers from late spring to autumn.
DormancyNo true dormancy, but slows growth in cooler months.
Propagation
MethodsSeeds, Stem cuttings, Layering
DifficultyModerate; cuttings root more reliably than seeds.
Best SeasonSpring to early summer.
Maintenance & Notes
PruningPrune after flowering to control growth and remove dead wood.
RepottingRepot young plants annually; mature vines as needed every 2–3 years.
Pests & DiseasesSusceptible to aphids, spider mites, mealybugs, and some fungal diseases.
ToxicityNon-toxic; fruit is edible but leaves may cause mild stomach upset if ingested in excess.
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