Passiflora suberosa, commonly known as corkystem passionflower, is a tropical climbing vine native to the Americas with distinctive corky-textured older stems. The species produces small greenish flowers and dark purple egg-shaped fruits. Seed germination typically takes 4-8 weeks with warm water pre-treatment, though stored seeds may require up to 6 months.
Before sowing
Remove flesh from fresh seeds and allow to dry for a few days before soaking in warm water. Stored seed requires 24-hour soaking; germination time can be further reduced by mixing with fresh passion fruit juice.
Sowing
What to expect
Tips
Remove seeds from fresh fruit pulp immediately for best germination. Use warm bottom heat (70-80°F) for faster germination. Keep substrate consistently moist but not waterlogged using a transparent-lidded container to maintain humidity. Provide bright indirect light rather than direct sunlight for seedlings. Do not bury seeds too deeply - place just barely covered. Use a heating pad under containers during cooler months. Mist daily if germinating in drier conditions. Be patient: some seeds may germinate slowly or take several months.
Sources: Botanikks.com, Sharon's Florida, Eden Brothers, Useful Tropical Plants (Vanderplank), Dave's Garden, Leon Levy Native Plant Preserve, Wikipedia, Kew Science Plants of the World Online
