The Green Bird Flower – Unique & Beautiful Flowers

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crotalaria cunninghamii bird flower unique flowers

Crotalaria cunninghamii, otherwise known as green bird flower or regal bird flower, is a plant of the legume family Fabaceae, titled after early 19th-century botanist Allan Cunningham.

It is native to, & extensive in inland northern Australia. It is a coloniser of shifting sand dunes along shores & in Mulga communities. It is pollinated by large bees & by honeyeaters.

5 crotalaria Cunninghamii facts

  1. Crotalaria Cunninghamii, also known as the green bird flower or narrow-leaf bird flower, is a flowering plant native to Australia.
  2. The plant belongs to the Fabaceae family and is closely related to other bird flower species, such as Crotalaria agatiflora and Crotalaria striata.
  3. Crotalaria Cunninghamii is a perennial shrub that grows to a height of 1-2 meters. It has narrow, green leaves and small, yellow flowers that bloom from spring to summer.
  4. The plant is often used in landscaping and garden design, particularly in dry or drought-prone areas. It is known for its low maintenance requirements and ability to attract butterflies and pollinators.
  5. Crotalaria Cunninghamii is toxic to livestock, including cattle, sheep, and horses, and can cause serious illness or death if ingested. The plant’s toxic properties are due to pyrrolizidine alkaloids, which can damage the liver and cause liver failure. It is important to keep this plant out of reach of livestock and to properly dispose of any plants that have been trimmed or removed from gardens.

Crotalaria cunninghamii Description

A green bird flower is a perennial (a plant that grows for more than 2 years) bush that grows to about 1–3 m in height. It has hairy or woolly branches & soft green foliage. The oval leaves are around 30 mm long, the big & greenish pea flowers are streaked with fine black marks, & the club-shaped seed pods are up to 50 mm.

Crotalaria cunninghamii bird flower unique flowers

The plant’s flowers blossom on long spikes at the tips of its branches. The flower dramatically resembles a bird fastened by its beak to the center stalk of the flowerhead.

Crotalaria cunninghamii Uses and cultivation

Aboriginal people employed the sap from the leaves to heal eye infections.
The Green bird flower can be grown in warm areas. It needs well-drained soil & a full sun position. It does not like cold climates or anywhere there are frosts. The propagation is from the seed, which quickly germinates following boiling water treatment, or from cuttings.

This plant has a symbiotic connection with nitrogen-fixing bacteria, which helps increase nitrogen levels in the garden soil. This nitrogen is used by the Green bird flower & other plants in the vicinity. Planting this flower can increase nitrogen levels in the surrounding soil, improving soil conditions around your garden.

Crotalaria cunninghamii bird flower unique flowers

This native pea is all over the internet because its curious individual flowers resemble tiny green birds. Besides its curious appearance, it’s also excellent at fixing nitrogen into poor soils, & can bind sand dunes & soil banks to limit erosion – useful and attractive!

It’s a short-lived perennial plant. It’s a member of the pea family. Hence it grows these pods, and a common feature of this genus is that the pods rattle once they’re ripe. This is a nitrogen fixer.

It grows all over the northern part of Australia. The unique flower is good for warm and sunny positions as its native environment is in northern Australia.

The Bird Flower Facts

  • Plant Family: Fabaceae subfamily Faboideae
  • Plant Distribution: Widespread in inland areas of northern Australia.
  • Flower Common Name: Green bird flower.
  • Name Meaning:
    • Crotalaria, from Greek crotalon, a rattle, referring to the seeds which rattle in the pod.
    • cunninghamii; After 19th-century botanist Allan Cunningham.
  • Conservation Status: Not endangered

Crotalaria cunninghamii bird flower unique flowers

Crotalaria is a large variety of over 500 species; there are approximately 30 native to Australia, & numerous exotic species have become acclimated. They are usually small to medium shrubs or herbaceous species. They are recognised as “rattlepods” because the seeds are loose in the pods.

Crotalaria cunninghamii

Crotalaria cunninghamii is a shrub that grows to about 3 metres tall with fluffy branches & foliage. The leaves are oval-shaped & about 30 mm long. The large, greenish pea flowers bloom in winter & spring on long spikes at the tips of the branches.

The flowers are streaked with little black lines. The plant’s seed pods are up to 40 mm in length.

Aborigines used the sap from the leaves of this flower variety or species to manage eye infections.

Green bird flower is relatively popular in gardening in warm areas. It needs well-drained soils & prefers a position in full sun. It is not suited to cool climates & is damaged by frost.
Propagation is from seed, which germinates quickly after treatment in boiling water, or from cuttings.

Crotalaria cunninghamii is a short-lived (perennial) shrub that grows upright and is widely distributed throughout the northern section of Western Australia, from the coast through to the deserts, mostly on drainage lines & sand dunes.

This flower species grows up to four metres high with large oval-shaped, velvety grey-green leaves & foliage. But its most fascinating characteristic is its quantity of large, vivid green pea flowers that are finely striped with purplish-brown ‘veins’.

Crotalaria cunninghamii bird flower unique flowers

The fascinating Flowers are displayed in terminal clusters, with each one closely resembling a bird attached by its ‘beak’ (the calyx) to the tip of the stems, hence its common name.

The green bird flower mostly blooms from January to April in Perth or longer in its natural environment, followed by velvety, club-shaped seed pods around four to five cm in length.
C. cunninghamii is a bird-attracting plant ideal for low screening & borders.

Horticultural tips

  • Quickly grown from seed pre-treated in boiling water & planted in October or from cuttings.
  • Although generally a warm climate species, it will grow in cooler regions but is best grown across the late spring, summer & autumn months.
  • Prefers a sunny position in well-drained sandy & loose soils with a native slow-release fertiliser.
  • The flower is drought-hardy but does not tolerate frosts or freezing temperatures.
  • It’s vulnerable to moulds & rotting during winter; however, a spring pruning and cutting back of the leaves & an additional soaking of native slow-release fertiliser will help reshoot for the warm season & keep its compact shape.

Crotalaria cunninghamii bird flower unique flowers

Where can I find crotalaria Cunninghamii?

Scientifically identified as Crotalaria cunninghamii, named after the 19th-century botanist Allan Cunningham, the petite green shrub is native to Northern Australia. You can buy the beautiful Green Bird Flower from nurseries wherever they sold. Type “buy Crotalaria cunninghamii” or “buy green bird flower” into Google.

Can crotalaria Cunninghamii be grown indoors?

In regions that encounter freezing temperatures throughout the winter, bring the plant indoors till spring. This shrub needs full sun & well-drained soil but is drought-tolerant. Seeds for the plant are available on the internet.

How do you grow crotalaria Cunninghamii from seed?

Growing instructions:
  • Place the seed in a container & pour in just-boiled water & allow to soak overnight or for around 12 hours.
  • The swelled seed can then be planted, re-treat seeds that have not expanded.
  • Sow the depth of the seed, and keep the seed warm & moist but not wet.
  • Germination should occur in 10-21 days at 18-22C.

Further Reading

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