Perennial . A hardy climbing shrub, generally flowers the year after sowing. Producing masses of exotic blooms. Fascinating climber with star-like flowers
Sow in Spring and cover with vermiculite . To improve germination, soak the seed in tepid water for 24 hours.
Sow 2-5mm deep in peat or soil based seed compost.
Temperature is probably the most important factor in germination, ideally at a temperature of 26 degrees C (79F)
When you come to plant them outside they will need well drained dryish soil which warms up quickly in spring. They prefer a soil that is on the sandy side, free draining and not rich. If the soil is too rich and fertile then it may grow leaves only and no fruits or flowers.
Plant passionflowers in full sun if possible, and make sure the soil is free draining. Passionflower needs a sheltered sunny spot and is evergreen. It is hardy in milder areas, otherwise give some winter protection as the roots are prone to rot if kept cold and wet. Established plants have a better chance of over wintering than very young ones