Passion plants (Passilfora) are easy-to-grow vines that are indigenous to regions in South America. They are grown extensively throughout the sub-tropical areas of North America and have become naturalized plants in Florida, where they are often seen growing wild along roadsides and open fields. What makes passion plants so unique is their exotic, star-shaped 2- to 3-inch wide fragrant flowers that come in a wide assortment of colors. Whatever variety of passion plant you want to grow, make sure you plant it in full sun and provide it with rich, fertile soil.
Choose a planting site for the passion plant that is in full sun. Passion plants are vines and require support as they grow, so choose a location that is near a fence, an arbor, a tree, shrubs or any object that can provide the passion plant with some support.
Dig a generously sized planting hole for the passion plant. The width of the planting hole should be approximately 3 times the diameter of its current growing container. The depth should be approximately 1 and 1/2 times the depth of its current growing container.
Mix into the soil you removed from the planting hole approximately 1/2 to 1 cubic feet of a soil amendment such as aged manure or dehydrated compost. Passion plants need very good drainage, otherwise they will die. Incorporating a soil amendment can help improve drainage and ensure a healthy passion plant.
Remove the passion plant from its current growing container. Give the rim of the container a few hard taps in a downward direction using a trowel or a small hammer. Once the container loosens, remove it from the root system. If there are any encircled or matted roots, loosen them with your fingers.
Set the passion plant into the previously dug planting hole. Make sure the passion plant is not sitting too deeply in its planting hole. The top of the root system should be sitting at the same level as the surrounding garden soil. Scoop in garden soil until you have filled the planting hole full of soil.
Water the passion plant with approximately 1 to 2 gallons of water. Then water the passion plant once a week, as suggested by Just Fruits and Exotics.com. Provide between 1 and 2 gallons of water each time you water, or enough water to moisten the soil down to a depth of between 4 and 6 inches.
Spread out a 2- to 3-inch layer of pine bark, leaf mold or grass clippings for mulch around the passion plant. This will help conserve moisture and offer the root system of the passion plant protection during the winter.
Fertilize the passion plant once every 4 to 6 weeks using a 10-5-20 or similar granular fertilizer. Make sure you follow the recommendations specified by the manufacturer so you will know how much fertilizer to use.