The green bulb in the center symbolizes Draupadi, the queen of Pandavas. The three filaments are for the holy trinity of Brahma-Vishnu and Mahesha. The radial in the center is the Sudarshan chakra of Lord Krishna. Ohh that's great, local people have known it as Krishna Kamal or Mahabharata Flower.
Morning sunlight of 3 - 6 hours a day is ideal for flowering and plant grow well in bright light for rest of the day. The soil should be well drained, fertile and rich in organic content for growing Passion Flower plant.