As my chicken coop and chicken yard continue to evolve in their needs, I've started adding blooming vines to the fence we built to keep them out of the veg garden. I planted three of these Maypops, or Passiflora incarnata, (plus a couple of P. caerulea 'Blue Queen') along the fence to not only provide some shade for the girls, but also to camouflage the fence dress things up a bit with the showy flowers.
After an application of recycled chicken litter fertilizer, these beauties have taken off and are starting to throw off a number of blooms. Maypops also produce small orange edible fruits (hence the name), which will make great treats for the chickens!
Butterflies love passion vine so planting one or two is a great way to attract them to your garden. There are many different species and varieties to choose from. In mild winters they may keep most of their foliage...in colder winters they'll die to the ground, then re-emerge in spring. Passion vines are perfect for a sunny location, but they will tolerate some dappled shade or late afternoon shade.