Ideally, it should have 4 hours of bright, direct sunlight daily throughout the year. However, it may sun scorch in summer if placed too close to a south or west window. The plant may be summered outside. It will tolerate slightly warmer temperatures in summer but is more likely to become infested with spider mites and may not have as attractive a shape. Beginning in late August, let them dry out a bit between waterings but never completely.
Passion vines tend to flower more freely when confined.
Top dressing rather than repotting is sometimes advised. Repot every 2 years in late winter or early spring, allowing the plant to recuperate for a week in a cool shady area before putting it back in a sunny location. This should encourage flowering on the new growth. It blooms in April, with white petals and sepals and a ring of filaments that are purple, white and blue. It will flower when still young, even in a small pot.