Alsophila dealbata, synonym Cyathea dealbata, commonly known as the silver fern or silver tree-fern, is a tree fern endemic to New Zealand, where it is a key component of the understory in temperate rainforests and cloud forests. It can grow up to 33 feet tall with a trunk up to 3 feet in diameter, and it features fronds that are roughly 13 feet long. The silver fern is easily recognized by the silver-white color on the undersides of its fronds, which contrast with the dark green upper surface. The plant’s appearance is striking, with its large, arching fronds creating a distinctive and graceful silhouette. Flowering is not applicable to ferns, but the silver fern’s fronds are highly ornamental and provide a lush, exotic look.

The silver fern is valued for its unique aesthetic and is often used in shaded garden areas, as a focal point in ferneries, or in large containers. It requires consistently moist, well-drained soil rich in organic matter and thrives in part shade to full shade conditions. While it prefers high humidity, it is somewhat adaptable to drier conditions if kept well-watered. The silver fern is relatively low maintenance but may need protection from strong winds and frost in colder climates. It is not known for significant disease or pest issues, but it can be sensitive to overwatering and root rot if drainage is poor. In cultivation outside its native range, care should be taken to prevent it from becoming invasive, as it can spread if conditions are favorable.CC BY-SA 4.0