Coral-pea
Hardenbergia violacea · Fabaceae
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around coral-pea and prepare for winter.
ID card
- Common name
- Violet glycine, Hardenbergia
- Family
- Fabaceae
- Type
- Woody climbing plant
- Foliage
- Evergreen
- Flowering
- February to April (violet-blue flowers)
- Adult size
- 3 to 4 m in height
- Hardiness
- From -5°C onwards (mild zones, Mediterranean climate)
- Origin
- Australia (New South Wales)
Care
Light exposure
Install Hardenbergia violacea in full sun or partial shade for optimal flowering. It appreciates a sheltered position away from strong winds and benefits from warmth in temperate or Mediterranean climates. A south or west-facing exposure promotes abundant flowers.
Watering
Water regularly during growth and flowering, keeping the soil moist without waterlogging it. Once established, the plant tolerates dry periods better. Reduce watering in winter, especially in cold climates.
Soil and drainage
Well-drained, slightly acidic to neutral soil is ideal. Enrich the potting mix with compost at planting to encourage rooting. Avoid heavy, compact soils that retain too much moisture.
Pruning and training
Prune lightly after flowering to control shape and remove dead or poorly positioned shoots. Attach main stems to a support (trellis, pergola) from a young age. Moderate pruning promotes denser branching and generous flowering.
Fertilizing
Apply balanced fertilizer or one slightly rich in phosphorus in spring and early summer. Like Fabaceae, Hardenbergia partially fixes atmospheric nitrogen: avoid over-fertilizing as this would reduce flowering in favor of foliage.
Pests and diseases
This plant is generally robust. Watch for aphids and spider mites in dry climates. Stagnant excess moisture can promote root rot or fungal diseases; good air circulation and adequate drainage prevent them.
Did you know?
Hardenbergia violacea is named after the German botanist Albrecht von Hardenberg (18th century), but it has become an emblem of Australian flora. In Australia, it is traditionally used as an ornamental plant to cover pergolas and arbors, and its early flowering (late winter) makes it a herald of spring in the Southern Hemisphere.
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
Add this plant to my garden →Plants from the same family
- Chinese wisteriaWisteria sinensis
- Common broomCytisus scoparius
- Black locustRobinia pseudoacacia
- Common PeaLathyrus oleraceus
- Honey locustGleditsia triacanthos
- Hairy greenweedGenista pilosa
Tips generated and checked by Viridia — adapt them to your local climate.