PlantFun
Plant Needs
Sunlight
Full sun to partial shade; full sun promotes abundant flowering; tolerates coastal wind exposure
Watering
Water deeply but infrequently; allow top 15–20 cm of soil to dry between waterings; drought-tolerant once established
Temperature
Hardy to -10°C; thrives in cool to temperate climates; avoid prolonged extreme heat above 38°C
Characteristics
- Leaf: Silvery-blue bipinnate compound leaves with fine, feathery leaflets; juvenile leaves are simple oval-shaped
- Flower: Bright yellow, spherical pom-pom inflorescences with a sweet, honeyed fragrance
- Stem/Bark: Smooth grey-brown bark; young stems have a silvery, fuzzy pubescence
Care Guide
Watering
Water regularly during active growth; avoid waterlogging to prevent root rot
Fertilization
Apply a balanced slow-release fertilizer once at the start of growth. Do not over-fertilize, as excessive nitrogen can reduce flowering
Eggshell powder topdress：Crush dried, rinsed eggshells into fine powder; sprinkle lightly around the base of the tree to boost soil calcium and improve drainagePruning
- Remove dead, damaged, or crossing branches in late spring after flowering to maintain canopy health
- Thin crowded inner branches to improve airflow and light penetration
- Shape young trees to establish a strong, balanced canopy; avoid heavy pruning of mature trees as they recover slowly
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Contains cyanogenic glycosides; ingestion may cause vomiting, diarrhea, lethargy, or abdominal pain
Humans: Ingestion of large quantities may cause gastrointestinal upset; sap contact can irritate sensitive skin
Garden Uses & Culture
Culture: Symbolizes resilience and renewal in Australian native horticulture; often used in ceremonial floral arrangements
Usage: Ornamental shade tree; cut flower stems for floral displays; nitrogen-fixing properties improve soil fertility
