Blue passionflower is a tropical vine with beautiful, ornate flowers. It is an annual vine in the Midwest, but will grow rapidly and produce flowers.
This plant has some cultivated varieties. Go to list of cultivars.
- Mixed border,
- Large plant (more than 24 inches)
- Full sun (6 hrs direct light daily)
- Zone 8,
- Zone 9,
- Zone 10,
- Zone 11
- Moist, well-drained soil
- Mid summer,
- Late summer,
- Early fall
Size and Method of Climbing
Blue passionflower can grow up to 20 feet in one season. It climbs by tendrils. Vines with tendrils climb by twisting those tendrils around a support. This type of vine grows well on trellises, arbors, wires or chain-link fences.
Full sun and well drained soil.
Disease, pests, and problems
No common serious problems.
Native geographic location and habitat
Native to South America.
The alternate leaves are deep green with 5 to 9 deep lobes.
The blue and white flowers are very ornate and distinctive.
Fruit are not commonly produced. They are egg-shaped, orange berries; 2 to 2.5 inches long.
Cultivars and their differences
Clear Sky blue pasionflower (Passiflora caerulea 'Clear Sky'): A vigorous cultivar with light blue flowers that are slightly larger than those of the species.
Constance Eliott blue passionflower (Passiflora caerulea 'Constance Eliott'): This cultivar has pure white flowers.