Pandorea jasminoides aka Bowerplant

Pandorea jasminoides is an evergreen vine in the Bignoniaceae family. Gardeners call it bower vine or bower plant. Its native range runs from eastern Queensland to northeastern New South Wales. This Australian climber comes from a subtropical region. Its slender stems twine around supports as they grow. It can cover fences, arbors, and other garden structures.

In gardens, it reaches about 13–26 feet [4–8 metres] tall. Its spread reaches about 3–5 feet [1–1.5 metres]. The support helps set its final height and width. Growth is fast, though full maturity takes five to ten years. UF/IFAS reports coverage of a 15-foot [4.6-metre] arbor within two growing seasons. Brown stems bear glossy green leaves in opposite or near-opposite pairs. Each pinnate leaf has five to nine oval leaflets. The foliage stays green without a fall colour change.

The scented flowers grow in small clusters. Each flower has a tube and broad, spreading lobes. Flowers measure about 0.13–0.16 feet [0.04–0.05 metres] across. White lobes frame a deep pink throat. The RHS lists flowering in spring and summer. In Florida, flowers may appear at intervals throughout the year. UF/IFAS places the main flush in midsummer. The fruit is long, brown, and dry or hard. It adds little to the plant's display.

Give this vine full sun and shelter from strong winds. It also grows in part shade, according to UF/IFAS. Rich soil with good drainage and ample moisture suits it. It tolerates clay, sand, and loam across a broad pH range. Drought tolerance is moderate, but salt tolerance is poor. UF/IFAS lists USDA zones 9b–11; the RHS gives H1C. In Britain, it may survive beside a warm wall in very mild sites. Elsewhere, use a cool greenhouse or conservatory with full light. The RHS recommends peat-free, loam-based compost for container plants.

Use it on a patio, against a wall, or over an arbor. Its evergreen leaves provide cover beyond the flowering season. Prune after flowering. Propagate it by layering, seed, or stem cuttings. Summer semi-ripe cuttings need bottom heat under RHS guidance. Aphids and glasshouse red spider mites may cause trouble. Both horticultural sources report few major pest or disease problems. UF/IFAS does not identify it as invasive.