Passiflora, a stunning tropical vine, is a breeze to cultivate. This well-liked indoor or outdoor vine can also be propagated without any difficulty. There are a few different methods to achieve Passionflower propagation, including seed or stem cuttings in the springtime or layering during late summer.
Growing passion flower seeds can be a bit tricky, as they are best planted fresh or straight from the fruit. Keeping them in storage for too long can cause them to become dormant for up to a year. However, if you do happen to have some older seeds on hand, there’s a simple trick you can try to encourage them to sprout. Just take a piece of fine sandpaper and gently rub one or both sides of each seed to help break their dormancy and improve the chances of successful germination.
To begin, submerge the seeds in tepid water for approximately one day. Discard any seeds that float to the surface as they are not viable. Then, gently press the remaining seeds into potting mix or peat compost that is well-draining, burying them about ¼ inch (0.5 cm) deep.
To maintain moisture, use vented plastic to cover the seeds and remove it once germination begins, which can take anywhere from two to eight weeks depending on the age of the seeds. Avoid exposing the plants to direct sunlight until they have developed their second set of leaves. Keep in mind that seed-grown plants may not produce immediate blooms.
Did you know that some types of passion flowers can take up to a decade before they bloom? If you’re eager to grow your own passion flower plant, consider rooting cuttings from an established plant. The best time to take stem cuttings is during the conifer stage when the stems are pliable and likely to break off easily when bent. Using sharp pruners, snip off about a handful of cuttings just below the node. Remove the lower leaves and tendrils from the cuttings and dip the ends in rooting hormone before planting them about half an inch deep in well-draining potting mix or a combination of sand and peat. With a little patience and care, you’ll soon have your very own blooming passion flower plant!
To help your cuttings grow, give them a little bit of water and then cover them with a clear plastic bag that has some air holes. You might need to add some extra support if the cuttings are fragile. Then, find a spot that’s shady and try to keep the area warm and moist. In about a month, you should start seeing new growth. When you gently tug on the cuttings and they don’t come out easily, that means they’ve started growing roots. At this point, you can move them to their permanent home.