Passiflora alata Curtis
Winged-stem Passion Flower, Fragrant Granadilla, Winged Passion Flower
Passiflora latifolia, Passiflora phoenicia
Color: Red, purple and white
Bloom Time: Late summer or early fall
Passiflora alata is an evergreen vine, growing up to 20 feet (6 m), with 4-winged stems and large, 3-lobed leaves. The leaves up to 6 inches (15 cm) long and up to 4 inches (10 cm) wide. The fragrant flower is up to 4 inches (10 cm) in diameter, with red, curved tepals and a prominent fringed corona in bands of purple and white giving the appearance of stripes. It usually blooms around late summer or early fall. The edible fruit is egg-shaped, yellow to bright orange, up to 6 inches (15 cm) long and up to 4 inches (10 cm) in diameter.
USDA hardiness zones 7a to 10b: from 0 °F (−17.8 °C) to 40 °F (+4.4 °C).
How to Grow and Care
Their vibrant colors and heady fragrance make the Passion Flower a welcome addition to any garden. Unfortunately, because of its origins, most species of Passion Flower plant can't overwinter in many gardens in the United States, although there are a few that will survive up to USDA plant hardiness zone 5. Most varieties will grow in Zones 7-10.
Because they are vines, the best place for growing Passion Flower is along a trellis or fence. The tops will be killed off during winter, but if you mulch deeply, your Passion Flower plant will return with new shoots in the spring. Since growing Passion Flowers can reach 20 feet (6 m) in a single season, this dieback will help keep the vine under control.
Passion Flowers need full sun and well-drained soil. Two applications of a well-balanced fertilizer per year, once in early spring and one in midsummer are all the Passion Flower care you will need… – See more at: How to Grow and Care for Passion Flowers
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