Hardiest of the gorgeous and intricate passion flowers!
Passion Flower Vine
Complex 4" flowers keep coming all summer and don't stop until late fall! This vigorous vine will grow stems to 30', covering a 10' stretch of fence, or a nice-sized trellis. Can be grown in the ground or in a large container, which can be brought indoors to a cool sunny place to overwinter north of zone 6. Prune 1/2 the stems hard in early summer, and tip prune the rest. Flowers best in well-drained, gritty soil that's not too fertile. Passiflora caerulea. Full Sun.