North America Non-native Plant

Birdflower

Botanical name: Crotalaria cunninghamii

USDA symbol: CRCU7

Native status: Not native but doesn't reproduce and persist in the wild

Birdflower: The Australian Native That Looks Like It’s Ready to Take Flight Have you ever seen a flower that literally looks like a bird? Meet the birdflower (Crotalaria cunninghamii), an extraordinary Australian native that’s guaranteed to be the most unusual conversation starter in your garden. With its distinctive green blooms ...

Birdflower: The Australian Native That Looks Like It’s Ready to Take Flight

Have you ever seen a flower that literally looks like a bird? Meet the birdflower (Crotalaria cunninghamii), an extraordinary Australian native that’s guaranteed to be the most unusual conversation starter in your garden. With its distinctive green blooms that perfectly mimic a bird in flight—complete with what appears to be a beak, wings, and tail—this plant is nature’s quirky masterpiece.

What Makes Birdflower So Special?

The birdflower gets its name from its remarkable flowers, which bear an uncanny resemblance to a hummingbird hovering in mid-air. The blooms are primarily green with subtle yellow markings, creating an almost surreal appearance that stops visitors in their tracks. Each flower cluster seems to contain a flock of tiny birds frozen in time, making this one of the most photographed plants in any garden where it grows.

Where Does Birdflower Come From?

This fascinating plant hails from the arid and semi-arid regions of western and central Australia, where it has adapted to thrive in challenging desert conditions. In its native habitat, it plays an important role in the ecosystem, providing nectar for native pollinators and adding splashes of color to the stark landscape.

Is Birdflower Right for Your Garden?

Birdflower can be a stunning addition to the right garden, but it’s definitely not for everyone. Here’s what you need to consider:

Perfect For:

  • Drought-tolerant and xeriscape gardens
  • Rock gardens and desert landscapes
  • Australian native plant collections
  • Gardens in USDA zones 9-11
  • Gardeners who love unusual, conversation-starting plants

Not Ideal For:

  • Cold climate gardens (zones 8 and below)
  • Areas with heavy, clay soils
  • Gardens with automatic sprinkler systems
  • Humid, tropical environments

Growing Birdflower Successfully

Sun and Soil Requirements

Birdflower absolutely demands full sun and excellent drainage. Think desert conditions—this plant thrives in sandy, well-draining soil and will quickly succumb to root rot if kept too moist. If you have heavy clay soil, consider growing it in raised beds or containers filled with a cactus and succulent potting mix.

Watering Needs

Once established, birdflower is incredibly drought-tolerant. Water sparingly—only when the soil is completely dry. During winter months, reduce watering even further. Overwatering is the quickest way to kill this plant, so when in doubt, don’t water.

Climate Considerations

This plant is only suitable for warm climates and cannot tolerate frost. If you live in USDA zones 9-11, you can grow it outdoors year-round. In cooler areas, consider it as a container plant that you can move indoors during winter, though it may not flower as reliably.

Care and Maintenance

Birdflower is refreshingly low-maintenance once you get its basic needs right. Here are the key care tips:

  • Prune lightly after flowering to maintain shape
  • Avoid fertilizing—this plant prefers poor, nutrient-low soil
  • Watch for signs of overwatering (yellowing leaves, soft stems)
  • Protect from frost in marginal zones

Wildlife and Pollinator Benefits

While primarily grown for its novelty factor, birdflower does provide nectar for various pollinators, including native bees. In its native Australia, it supports local ecosystems, though its wildlife value in North American gardens may be limited compared to native alternatives.

Native Alternatives to Consider

If you’re in a climate unsuitable for birdflower or prefer native plants, consider these drought-tolerant alternatives that offer unique visual interest:

  • Desert Willow (Chilopsis linearis) for southwestern gardens
  • Prickly Pear Cactus (Opuntia species) for distinctive form
  • Ghost Plant (Graptopetalum paraguayense) for unusual succulent appeal

The Bottom Line

Birdflower is undeniably one of the most unique flowering plants you can grow, but it requires the right conditions to thrive. If you live in a warm, dry climate and can provide excellent drainage, this Australian native will reward you with years of jaw-dropping blooms that never fail to amaze. Just remember—this is a plant for desert gardeners, not those with green, lush landscapes. Give it what it needs, and prepare for endless questions from fascinated visitors who can’t believe their eyes!

Birdflower

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Crotalaria L. - rattlebox

Species

Crotalaria cunninghamii R. Br. - birdflower

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA