Passion fruit or passionfruit (Passiflora edulis) is a vining tree that produces sweet and sour fruits. The fruit may have yellow or purple rinds; inside, small black seeds are coated with a yellow gel. Passionfruit seeds can be eaten raw or juiced for use in desserts or cocktails. A tropical plant, passionfruit can only be planted in tropical and subtropical climates, such as that of southern Florida or southern California. While not commonly planted in the United States, passionfruit has been in the country since 1887, notes Purdue University.
Select a location for your passion fruit that offers full sun and well-draining soil. Take a soil sample to test the pH. Passion fruit prefers a pH of 6.5 to 7.5. Most test kits require you to moisten the soil then apply a test strip. Check the pH value against the color chart to determine the pH.
Amend your soil if it falls outside of the preferred pH range. Work lime into the soil to raise the pH or sulfur to lower it. If your pH falls within 6.5 to 7.5, skip this step. Use the guidelines at The Garden Helper for exact quantities (see Resources).
Dig a hole for your passion fruit tree that's twice as wide as the plant's root ball. Remove weeds or rocks from the soil.
Remove your passion fruit tree from its container and loosen its root ball before planting. Unwind any circled roots.
Place the passion fruit in the prepared hole so it sits at the same depth as it was planted in the container. Fill in the hole with soil until the passion fruit is securely planted.
Water the newly planted passion fruit until the soil becomes saturated and compresses around the plant.
Place a trellis behind the passion fruit tree. This vining tree requires the support of a trellis. Use a wooden garden trellis that is at least 6 feet tall. Alternately, plant your passion fruit next to a tree and allow the passion fruit to naturally vine up the tree's trunk.