I noticed that there was a Passiflora thread on Terraforums, but many years ago. I thought it was time to start a new one.
Although pictures of flowers can be flashy, I want to encourage people to post picture, comments, questions about whatever... Fruits, leaves (some species are grown primarily for foliage, not flowers), propagation, wild species, questions of carnivory (Dysosmias) and so on. Whatever seems interesting.
I figured I'd start with my most reliable Passiflora, which means that it does well in spite of the shade in my tiny growing area: Passiflora loefgrenii. Right now I grow two varieties: 'Iporanga' (both in a pot and in the ground) and Corupa (a new plant in a pot). I have an extra 'Iporanga' in a pot that's too big to easily ship, for anyone who lives in my area (SF Peninsula, San Mateo County). A free plant.
The first photo is actually in my old location, about 20 miles South of where I am now. Passiflora loefgrenii 'Iporanga':
In addition to it's contrasting day-glow colors and appearance as if it were drawn by Dr. Seuss, one thing I really like about P. loefgrenii 'Iporanga' is its long peduncles. I've seen them over a foot--in fact just today on one of my plants. This photo illustrates the effect:
Another nice feature about Passiflora loefgrenii is that it blooms small. Here are rooted cuttings for sale in a local nursery (wholesaler Annie's Annuals) showing buds on a small plant:
One thing that the 'Iporanga' clone does not do is make fruit easily. I'm told that even with an appropriate pollen source, it's difficult to get this variety to make fruit. It does, however, provide potent pollen as a male parent when making hybrids.
The other Passiflora loefgrenii variety that one frequently encounters is 'Corupa', which is not only self-fertile, but seems to make fruit off of most of it's flowers. I finally got a nice plant of 'Corupa' recently, which a friend bought at the UCBG Spring Sale. I don't have a picture of the flowers, right now, but their colors are less shocking, more pastel shades. The flowers are slightly smaller, and the peduncles are shorter on average. Here's my new plant, in fruit:
And finally, here's part of my "extra" plant showing buds and long peduncles. I was assured by a nursery that this was the variety that gets fruit... Even without blooming it, it's clear by the length of the peduncles that it is P. loefgrenii 'Iporanga'. Again, this plant is available, locally.
The fruit is sometimes billed as the "Garlic Passionfruit", as if this is a good thing, and a taste treat. Everyone I've heard from tells me the fruit tastes vile. I like this species a lot, however, and would love to be able to reproduce it from seeds.
I'll add more species and hybrids to this thread, and hopefully others will as well.