Woodwardia unigemmata: Chain Fern

Woodwardia unigemmata, the Chain Fern, is a striking, evergreen fern native to East Asia. It forms an arching clump of simply pinnate, leathery, glossy green fronds up to 3-5 feet long. A distinctive feature is the production of a single, prominent bulbil (gemma) at the tip of the frond (hence unigemmata), which can root to form a new plant. The sori are in characteristic chain-like lines.

Plant Profile

This fern prefers mild climates (USDA 8-10), shade to part shade, and moist, well-drained, humus-rich soil. The tip-rooting bulbil is a fascinating propagation method. It is an elegant, architectural fern for woodland gardens, shaded borders, and containers. The glossy, leathery fronds are very durable. A beautiful, collectible species.