Maypop (Passiflora incarnata) is one of the flowers of my childhood.
We often encountered maypop vines along fencerows and on roadsides or in abandoned fields. We called the plant “maypops” because if you snagged the oval fleshy berry-like fruit and stomped it, the fruit “may pop”.
The egg-shaped fruit is interesting but the flower is beautiful and fragrant. The blooms are large (about 3 inches across) with 5 petals which may split and seem to form more. The petals are fleshy and lavender to white above with green underneath.
Maypops are one of the few flowers that have a corona. The corona is an extra whorl or circle of flower parts.
A maypop corona looks like a ring of fringe that hovers above the petals and below the raised stamens. The thread-like corona segments are tinted with bands of lavender and white.
The lovely Gulf Fritillary butterfly is drawn to maypop flowers but she is more interested in the bold lobed leaves. This time of year, this beautiful orange and black butterfly visits maypop vines and lays her eggs. The orange and black spiny Gulf Fritillary caterpillars soon emerge from the eggs and proceed to devour maypop leaves.
When I was a teacher, I learned that the easiest way to teach about the butterfly life cycle is as follows:
- Step 1 – Find a maypop vine and search beneath the leaves until you locate a caterpillar. The caterpillar looks spiny but does not sting.
- Step 2 – Place the caterpillar in a large jar – at least quart sized. Punch holes in the lid for ventilation. Place a twig in the jar.
- Step 3 - Pick several maypop leaves and put them in the jar to feed the caterpillar. The caterpillar will also get water from the fresh foliage.
- Step 4 – Add new maypop leaves each day until the larva begins to form a chrysalis. The caterpillar will hang from the twig, become immobile and secrete a smooth covering. A crysalis is similar to a cocoon but the covering is smooth rather than embedded with twigs and dead leaves.
- Step 5 – Wait. In about 2 weeks if all goes well, the chrysalis will split and an adult Gulf Fritillary butterfly will emerge. As soon as the butterfly’s wings expand, it can be released into the wild. The Gulf Fritillary butterfly is one of the few butterflies that can complete a life cycle so quickly. In autumn this butterfly rapidly fosters new generations with the first frost as deadline.
I was inspired to write this post because of the maypop vines that flourish in the disturbed soils on my land. It is an amazingly versatile plant with stompable fruit and exotic flowers. And even if you choose not to observe the metamorphosis inside a jar, maypops deserve kudos for providing habitat for the beautiful Gulf Fritillary butterfly.

















