The Richmond Birdwing Vine is a threatened climbing vine found in lowland subtropical rainforest. In the garden this vigorous woody climber is great for a semi-shaded area. The vine is the main host plant for caterpillars of the vulnerable Richmond Birdwing Butterfly, Ornithoptera richmondia, the largest sub-tropical butterfly in Australia.
Description
The vine’s oblong leaves are large (up to 20 cm long) with prominent veins. The mature leaves are dark green and leathery while young leaves are pale green and soft. In spring the vine grows tubular flowers that are cream or pink on the outside with a hairy yellow inside. Yellow, oblong, ribbed fruit develop in late summer.
Growth requirements
The Richmond Birdwing Vine can be slow to get started but once established makes a great climber for shaded to semi-shaded positions. The vine prefers well-drained, moist soils rich in organic matter and is sensitive to prolonged dry conditions.
