Crotalaria cunninghamii, commonly known as the Green Birdflower or Parrot Pea, is a unique and striking plant native to Australia. Its most distinguishing feature is its bright green flowers that resemble small birds, making it a fascinating addition to any native garden!

Crotalaria cunninghamii is a medium to tall shrub, usually growing up to 1.5–3 metres in height. It has slender, upright stems covered in soft, silvery hairs, which help protect it from the intense sunlight and reduce water loss. Its leaves are narrow, grey-green, and typically 2–5 cm in length, arranged alternately along the stems.

The plant’s most remarkable feature is its flowers. Blooming from winter through summer, each flower is bright green with dark stripes, resembling a small bird or parrot in flight. These flowers are about 2–4 cm long and are arranged in clusters at the ends of the stems. The Green Birdflower is a fantastic plant for attracting native pollinators, especially bees.

Distribution

Crotalaria cunninghamii is native to the arid and semi-arid regions of northern Australia, found across Western Australia, the Northern Territory, and northern Queensland. It thrives in sandy soils, often growing along coastal dunes, inland sandy plains, and dry creek beds. This plant is well-adapted to hot, dry climates and can tolerate poor soils, making it ideal for dry and desert-like gardens.

Growing Crotalaria cunninghamii from Seeds

Growing Crotalaria cunninghamii from seeds is relatively straightforward, though the seeds do require some preparation to improve germination rates. Here’s a guide on how to grow this unique plant from seed:

Seed Collection: Seeds are found in the plant’s small pods, which dry and turn brown when mature. Collect seeds in late summer once the pods have fully ripened. We have done this part for you!

Seed Treatment: The seeds have a hard outer coat, so scarification is recommended. To do this, either gently rub the seeds with sandpaper or nick the seed coat with a sharp knife. Alternatively, you can pour boiling water over the seeds and let them soak overnight to help soften the coat.

Sowing: Plant the treated seeds in a well-draining, sandy seed-raising mix. Sow the seeds about 5 mm deep, covering lightly with soil. Ensure the container has good drainage.

Positioning: Place the seed tray or pots in a warm, sunny location, as Crotalaria cunninghamii prefers full sun. Seedlings will establish best in bright conditions.

Watering: Water lightly to keep the soil moist but not waterlogged. Once germination occurs, which can take 1-3 weeks, reduce watering to avoid overly damp soil.

Transplanting: When the seedlings reach around 10-15 cm in height and are sturdy, they can be transplanted to their final location. Choose a site with sandy, well-draining soil and full sunlight. This plant is highly drought-tolerant, so it’s suitable for areas with low rainfall.

Maintenance: Once established, Crotalaria cunninghamii is low-maintenance, requiring little water and thriving in poor soil. It’s recommended to avoid over-watering, as it prefers dry conditions. Prune lightly after flowering to maintain a neat shape.

With its bird-like flowers, Crotalaria cunninghamii adds a unique focal point to native gardens and dry landscapes. Although not edible, it is a valuable plant for its ornamental appeal and ability to withstand harsh climates!