PlantFun
Plant Needs
Sunlight
Full sun to partial shade; prefers direct sunlight for optimal foliage color and flowering; tolerates light shade in extreme heat
Watering
Water deeply but infrequently; allow the top 15–20 cm of soil to dry completely between waterings to prevent root rot
Temperature
Hardy to mild frosts down to -5°C; thrives in warm, dry climates; avoid prolonged exposure to temperatures below -5°C
Characteristics
- Leaf: Silvery-blue, lanceolate to ovate, 5–10 cm long, covered in fine white hairs
- Flower: Clusters of pink to red buds opening to creamy-white, fluffy pom-pom flowers
- Stem/Bark: Smooth, pale grey to brown bark that peels in thin, papery strips
Care Guide
Watering
Water every 7–10 days; increase frequency during extended heatwaves
Fertilization
Apply diluted low-nitrogen fertilizer once monthly. Use a slow-release, low-phosphorus fertilizer to support healthy foliage and flowering
Eggshell powder topdress：Sprinkle finely ground, oven-dried eggshells around the base of the tree; avoid direct contact with stems to prevent fungal growthPruning
- Remove dead, damaged, or diseased branches in late spring to maintain plant health and shape
- Thin crowded inner stems to improve air circulation and reduce disease risk
- Prune lightly immediately after flowering to encourage bushier growth and more blooms the following season
- Avoid heavy pruning, as Eucalyptus caesia has a naturally graceful form that is best preserved with minimal trimming
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; contains eucalyptol which may cause gastrointestinal upset and neurological symptoms
Humans: Contains eucalyptol; ingestion causes nausea, vomiting, and abdominal pain; skin irritation from essential oils
Garden Uses & Culture
Culture: Symbolizes resilience and native beauty in Australian ornamental gardens
Usage: Ornamental landscaping; limited essential oil production (with caution due to toxicity)
