Description
A robust, woody vine common in the Andes in South America from Colombia to Bolivia, where it is found in cloud forests at higher elevations between 1400 and 3800 m. It is popular for its lovely pink to red flowers and edible, roundish, very sweet and tangy fruit. They are both eaten fresh and made into juice. Passiflora mixta is well adapted to cool conditions and will grow in many warm temperate climates in USDA Zones 9 and above.
Germination Guide
🌍 Venezuela to Bolivia, Andean highlands
Difficult
Passiflora mixta, commonly known as Tumbo Passionflower, is a hardy Andean vine native to highland cloud forests from Venezuela to Bolivia at elevations between 1,700 and 3,700 meters. Seeds germinate very slowly, requiring 2-3 months or longer at cooler temperatures. Fresh seeds with pulp germinate more reliably than stored cleaned seeds.
Germination
Germination time
Expect germination in
60 – 365 days
Temperature
Min 15°C
Ideal 18°C
Max 20°C
Substrate moisture
💧💧 High
Sowing depth
Lightly covered
Seed Pre-treatment
-
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Soaking — 24 hours
Soak seeds for 24 hours in warm water. Pulp from fresh passion fruit or citrus juice can enhance germination by breaking down seed coat.
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Additional notes
Soaking seeds for 24 hours in warm water is essential due to hard seed coat. Fresh seeds with pulp germinate faster than stored seeds.
Substrate & Container
Recommended substrate
Well-drained soil-based compost or peat-based seed starting mix
Recommended container
Seed tray or small individual pots with drainage holes
Growing Tips
For best results: Obtain fresh seeds with pulp when possible. Soak for 24 hours in warm water before sowing. Plant at cool temperatures (15-20°C) rather than tropical warmth—this species prefers cool conditions and is well-adapted to warm temperate climates. Germination is extremely slow and can take up to 12 months or longer for stored seeds. Be patient and do not discard pots; seeds may wait until spring to emerge. Maintain consistently moist (but not waterlogged) substrate. Light is not essential. Provide excellent drainage to prevent damping-off.
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