Eucalyptus
Eucalyptus gunnii
Eucalyptus gunnii brings silvery-blue foliage and a menthol-like scent to a bright indoor spot. Juvenile leaves stay rounded before shifting to longer adult shapes as the plant ages. It grows fast and needs strong sun, so long-term indoor success takes commitment.
Light
Full Sun
Water
Moderate
Difficulty
Difficult
Humidity
Moderate
Pet Warning
Contains eucalyptol, which is toxic to dogs, cats, and horses. Symptoms of ingestion include vomiting, diarrhea, and lethargy.
Care Notes
Light
Eucalyptus needs at least 6 to 8 hours of direct sun. A south-facing window is best. Leggy stems or dull leaf color usually mean it wants more light.
Water
Keep moisture consistent. Water when the top inch of soil feels dry, and do not let the root ball dry out completely or leaves may crisp and drop. Use a planter with excellent drainage so the mix never stays soggy.
Soil
Choose a well-draining mix rich in organic matter. Fast growers often need a spring repot; handle roots gently because they dislike disturbance.
Humidity & Temperature
Moderate humidity is fine. In winter, water less, stop fertilizing, and keep the plant away from cold drafts and heating vents. Pinch tips regularly to hold size and encourage bushier juvenile foliage.
Common Issues
Leaf drop often follows dry roots or low light. Root rot follows poor drainage. Regular pruning is the practical way to keep this plant manageable indoors.
In-Depth Care & Growth
Feeding & Soil
Fertilizer
Balanced liquid fertilizer
Soil
Well-draining, fertile, slightly acidic to neutral pH.
Physical Attributes
Mature Size
6-10 feet (contained by pruning)
Growth Rate
Fast
Propagation
Seeds or semi-hardwood cuttings.
Common Varieties
Silver Drop
Small, round, silvery-blue leaves that grow in dense opposite pairs with a soft glaucous finish.
Baby Blue
Small rounded silvery-blue leaves stacked in opposite pairs tight against the stems.
Cider Gum (Gunnii)
Starts with small rounded silvery-blue juvenile leaves, then matures into slender sickle-shaped grey-green foliage.