Description
Eucalyptus citriodora is a tall, elegant Australian native known for its distinct citrus fragrance. The tree forms a smooth, pale cream to white trunk that naturally sheds in thin sheets, revealing fresh bark with a satin-like sheen. Mature specimens commonly reach 25 to 40 meters in height, with a slender, upright form and a light, airy canopy of long, narrow, glossy green leaves.
The foliage exudes a strong lemon aroma, most noticeable when leaves are crushed or after rainfall, thanks to high concentrations of citronellal. Small white flowers appear in clusters, followed by woody capsules typical of eucalyptus species. The essential oil derived from its leaves is widely used in perfumery, natural insect repellents, and aromatherapy.
This species thrives in full sun and well-draining soils, tolerating heat, drought, and light frost once established. It grows rapidly in warm climates and is commonly planted as an ornamental avenue tree or in large gardens where its vertical stature and scented foliage can be fully appreciated.
Germination Guide
🌍 Northeastern Australia, specifically from northern New South Wales to Cooktown in Queensland
Easy
Eucalyptus citriodora, commonly known as Lemon-Scented Gum, is a tall evergreen tree native to northeastern Australia with lance-shaped, golden-green leaves that release a distinctive lemon aroma. This species is valued for its fragrant foliage, striking white-pink bark, and essential oil content used in perfumery and insect repellents. Seeds germinate relatively quickly (10-28 days) when provided with appropriate cold stratification and consistent moisture.
Germination
Germination time
Expect germination in
10 – 28 days
Temperature
Min 18°C
Ideal 21°C
Max 27°C
Substrate moisture
💧 Medium
Sowing depth
Lightly covered
Seed Pre-treatment
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💧
Soaking — 24 hours
Soak seeds in room temperature water for 24 hours before sowing.
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🔨
Hot water scarification
Soak seeds in water for 24 hours before sowing to enhance germination.
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❄️
Cold stratification — 30 days at 4°C
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📋
Additional notes
Refrigerate seeds for 30 days at 4°C before sowing to improve germination rates. Some sources recommend leaving seed packet in the fridge for 30 days before sowing.
Substrate & Container
Recommended substrate
Well-drained seed starting mix, perlite/sand mixture, or premium seed compost
Recommended container
Seed trays or flats with drainage
Growing Tips
Sow seeds on the surface or cover very lightly with sand on moist seed compost. Do not bury seeds deeply as they require light for germination. Maintain consistent moisture and provide 30 days of cold stratification at 4°C for optimal results. Keep germination temperature between 18-22°C. High humidity during germination is beneficial. Once sprouted, gradually increase light exposure beginning with morning sun. Store seeds in a cool, dry place; germination rates decline with prolonged storage.
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