Its best to let the fallen fruit sit for a day or two at room temperature, it will become wrinkled, but shouldn't soften too much. The juice will separate easier from the seed when strained this way. Add the juice to drinks, desserts, cocktails, even beer! It has pungent taste and will mask the earthy taste of green when used in juicing. You can also just east the pulp, seeds and all. Passion fruit have a high potassium content and very low sodium, so they aid in lowering blood pressure.
Passion fruit need something to climb on, trellis, fences, oak or pal trees work well. It prefers to fruit in partial shade, like in the branches of a tree. They like consistent watering and will produce through out the summer and fall. The ripe fruit will fall from the vine when ripe.