Passionflower is a striking tropical-like vine that is easy to grow. This popular houseplant or garden vine is also easy to propagate. Passionflower propagation can be achieved through seeds or stem cuttings in spring, or by layering in late summer.
A vine that climbs with a passion, granadillas produce fragrant 2- to 3-inch-wide purple and white flowers and egg-shaped edible fruit. More commonly known as passion fruit, granadillas are subtropical.
Water granadillas thoroughly and regularly, especially during periods of drought and when the fruit is near maturity. Apply up to 4 cups of water per vine daily.
Provide support in the form of a sturdy trellis, arbor or fence. Granadillas’ vines can grow 15 to 20 feet annually and require yearly pruning in late winter. Use pruning shears to remove the dead and weak growth, and trim the remaining wood back by at least a third.
Apply a 10-5-20 all-purpose fertilizer at a rate of 3 pounds per plant four times a year. Make the first application in early spring before growth begins, making subsequent applications every four to six weeks throughout the growing season. Spread the fertilizer on the soil in a circle 18 inches out from the vine and water it in.