Soft New Guinea Tree Fern (Cyathea tomentosissima): Rare, Woolly Tree Fern for Collectors

Overview

Soft New Guinea tree fern (Cyathea tomentosissima) is a rare, trunk-forming tree fern endemic to the mountains of New Guinea. Its trunk and frond bases are densely covered in **soft, reddish-brown wool (tomentum)**—a striking tactile feature. The fronds are tripinnate, arching, and medium green, forming a crown 10–15 feet wide on a trunk to 20 feet. A collector's prize for its unique woolly texture.

Distinctive Woolly Coat

• Dense Tomentum: Reddish wool covers trunk, stipes, and rachises.
• Tactile Appeal: Uniquely soft to the touch.
• High-Elevation Adaptation: Wool insulates against cold mountain nights.

Culture

Partial shade; cool, moist, humus-rich, well-drained soil. High humidity; consistent moisture. Protect from frost (tender below 30°F / -1°C). USDA zones 10–11. Rare in cultivation; botanical garden and specialist collector plant.

Taxonomic Profile

Wrapped in rusty wool, this tree fern is a tactile treasure from the clouds of New Guinea.