Yellow Passion Fruit Seeds (Passiflora Flavicarpa)
Price for Package of 5 seeds.
Passiflora flavicarpa, the Yellow Passion Fruit, or Golden Passion Fruit, is native from Southern Brazil through Paraguay to Northern Argentina and now cultivated in all tropical areas. This is a vigorous perennial vine, with stems reaching lengths of 20 to 50, or even 80 meters high. It climbs by means of clinging tendrils. It grows on fences or trellises, or allow it to scramble over shrubs and trees. Can be kept as an container plant. It may be grown as a houseplant in a sunny South-facing window.
It's a fast grower with beautiful flowers and edible fruits. The flowers are fragrant, 6 to 9 cm wide. The corona is composed of white filaments, or white and purple. The first leaves are unilobate, becoming trilobate very soon. The leaves are glossy dark green and vary from 5 to 18 cm in length for the central lobe and from 4 to 17 cm for the lateral lobes.
The fruit is produced on a woody vine from bisexual flowers. The fruit is somewhat tart and contains many black seeds. It is less fragrant and slightly more acid than the Passiflora Edulis. Passion Fruit is commonly used in beverages. The yellow fruit is a round to oval, 6-12 cm by 4-7 cm. The pulp constitutes up to 55% of the fruit in the best selections.
Pruning is a must to keep the vine healthy. Prune off less vigorous growth and occasionally prune back vigorous growth to promote flowering. When established, and without care, the passion fruit can easily overtake other garden plants,shading them from sun.
Hardiness zone 11, (4°C/40°F) in Winter. It has only mild hardiness, surviving temperatures to 40°F, so protect from any frosts. Passiflora Flavicarpa is best in the Subtropics and prefer full sun, it will scramble over trees and shrubs to get it. It is also more demanding in terms of heat and humidity than Passiflora Edulis, and will grow better at low elevations. Provide ideally a temperature of 25°- 30°C. It will do best in a loam based mix with a little peat moss. Passiflora Flavicarpa likes light and evenly moist soil, mulch well.
You may need to water your plants on a daily basis during the hottest Summer months. During the Winter the roots should be kept moist, but as growth will be much slower you will probably only need to water once a week, depending on growing temperature. Fertilize at least once every two weeks in the growing season.
If their pot is too large or if they have an unrestricted root run then the whole plant will simply get bigger and bigger but it will refuse to flower and therefore produce the fruits. By limiting the pot size you are limiting the ability to grow and this is seen as a threat, so the natural mechanism is to produce seed for the next generation. A suitably sized pot for an adult plant would generally be of 12 inches in diameter.
Soak seed in warm water for 24 hours before sowing, in a good seed compost at 1/4" deep. For Passiflora seeds, instead of using water you can use a high pulp fruit juice such as passion fruit juice or orange juice. The acid in these juices will soften the shell and speed up germination. Keep damp soil, not soaking wet. Keep pot in warm situation 20°C/68°F, 24°C/75°F. Cover the top of the pot with clear plastic so the humidity will remain high. When you see some tiny plants starting to sprout, slowly open the top of the pot, a little each day, so that the new seedlings don't go into shock from the humidity being lowered too quickly. Germination of Passiflora can occur in weeks or take several months. If you want to speed up germination, you can use the bottom heat technique, but it isn't a must.
Scarification / Stratification
If your home is on the low side of 70ºF, your seeds will benefit from bottom heat. Give warmth from underneath to stimulate early growth, and to help seeds to germinate. The ideal situation is to maintain the soil temperature at 70ºF. For this, you use an electric soil warming cable kit, or a heating mat that goes under your flats; or any other source of heat. With the proper temperature, you will cut by 2 or 3 the germination time.