Purple Passionflower (Passiflora incarnata), also known as Maypop, Apricot Vive and Wild Passion Flower, is a vigorous, tendril-climbing vine that produces beautiful fragrant purple flowers and edible fruit. The flowers attract a wide range of pollinators, including bees, butterflies, and hummingbirds. Birds as well as small mammals like to feed on the fruit. It is also the larval host plant for the Gulf Fritillary, Zebra Longwing, Variegated Fritillary and the Mexican Fritillary.
Passiflora incarnata emerges in late spring, but this fast-growing perennial vine can reach more than 20’ in a single season. Multiple stems arise from the roots creating a nice, full specimen. Mid-summer to fall, dozens of 3”wide flowers with creamy pinkish-lavender petals and fully banded corollas appear daily, and they have a sweet fragrance. This is the hardiest of the passion flowers since it grows as far north as New England. ‘Maypop’ must be cross pollinated with another hardy passion flower to produce fruit.
To help with germination, place in damp sand or paper towel inside a ziplock bag and place in the refrigerator for 12 weeks. If starting seeds indoor, plant the seeds in starting mix and place in a warm area or on a heating mat. This lets the seeds think it is spring and they will germinate. If you don't want to go through the indoor process, simply sow the seeds outdoors in the fall and let nature take its course. The little vines should grow quickly and will most likely produce flowers their first year.
Once pretreated, plant seeds 1/2-1" deep in moist, sterile soil. Keep soil temperature consistent at 70-85F, with some day/variation in this range. Make sure to keep the starter pots in direct sunlight, keep them warm, and don't let the soil dry out. Germination should occur within 2 to 4 weeks. Considering this longer germination time, planting the seeds in late winter to early spring is ideal.
Height 10' – 20' (3-4 m)
USDA Zones: 5-10, annual in cooler climates