Cyathea brownii Norfolk Tree Fern The Norfolk Tree Fern is one of the most majestic ferns in cultivation, often described as a living relic from the age of dinosaurs. With its towering trunk covered in fibrous scales and a crown of arching, feathery fronds that can reach 3-4m long, it creates an atmosphere of primeval grandeur in shaded gardens. Native to Norfolk Island in the South Pacific, this species is the tallest tree fern in the world, capable of reaching 12-20m in height under ideal conditions. In Cape Town’s climate, it thrives in semi‑shade to full shade, preferring sheltered, humid spots where its fronds can unfurl dramatically. It is perfect for tropical, woodland, or fern gardens, where it becomes an instant focal point and evokes a sense of timeless beauty. Note: Tree ferns require consistent moisture and humidity. They are not drought‑tolerant and should be watered regularly, especially during Cape Town’s dry summer months.
Plant in rich, well‑drained soil with plenty of organic matter. Position in semi‑shade or full shade, sheltered from strong winds. Water generously and maintain humidity, especially in summer (December-March). Mulch around the base to retain moisture and protect roots. Avoid direct, harsh sun which can scorch fronds. Tree ferns benefit from regular misting and feeding with diluted liquid fertilizer during the growing season.
The Norfolk Tree Fern is considered a “living fossil,” with ancestors dating back over 300 million years. Its towering trunk is not woody but made of tightly packed fibrous roots, which store water and allow the plant to survive in humid forest environments. On Norfolk Island, mature specimens can reach heights rivaling small trees, making them the largest tree ferns on Earth. Owning one is like bringing a piece of ancient forest history into your garden.
| Botanical Name |
Cyathea Brownii
|
|
Growth Expectancy
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6m H x 4m W
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Position
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Sun - Shade |
| Water Smart | No |
| Indigenous | No |
