Description

General aspect and origins - Passiflora racemosa, syn. P. princeps is a vine which is native to Brazil and which bears ornamental red flowers that are grouped in racemes (which explains its species name.)
Leaves - Leaves are evergreen, alternate, glabrous, coriaceous, entire to trilobed, glossy on the upper side and about 4 in (10 cm) long.
Flowers - Flowers are about 4 in (10 cm) wide, are bright crimson and have red with white or pure white corona filaments. They are grouped in racemes of up to 30 flowers. This vine blooms over a long period in warm climates.
Fruits - The fruit of P. racemosa is yellow-green when ripe, 3 in (7.5 cm) or less long.

Culture

This vine is not really frost-hardy, but can withstand winters of USDA zones 10 and warmer. Elsewhere, it should be overwintered under glass.
Soil - This vine needs a well-drained and fairly fertile soil that retains moisture.

Propagation

This vine can be propagated by seeds, (in spring, with bottom heat) by cuttings (in spring with semi-herbaceous stems or in summer with half-ripe wood) or by air layers (in spring or in fall.)