Supernova Maypop. This is a robust, large flowered selection is one of the most frost-hardy of all passion flowers. P. incarnata 'Supernova' has fragrant flowers that are pure white and festooned with long curly filaments. With a different passion vine to pollinate it, Supernova will produce sweet, edible fruit. Passionflower breeder Ethan Nielsen selected this naturally occurring tetraploid variety from wild stock.
It is an herbaceous species that will regrow every year from the roots. Will not tolerate water-logged soil.
Subgenus: Passiflora, Supersection: Passiflora, Section: Passiflora, Series: Passiflora
Light: Full sun, part shade. There will be less flowers in part shade.
Soil: A wide range of soil, but it must be well-drained.
Fertilizer: A slow-release, bloom-booster type fertilizer is appreciated, but beware of using a fertilizer with too much nitrogen as it may push leaves at the expense of flowers.
Hardiness: Zone 7 provided that the soil is very well-drained. It is especially important that Maypop does not stay wet and cold at the same time. Good hardiness has been experienced by growers in wet climates by planting the vine under the eves of the house in order to keep the roots drier during the winter.