Woodwardia unigemmata

Woodwardia unigemmata, the jewelled chain fern, is a species of evergreen fern native to Eastern Asia from the Himalayas to China, Japan and the Philippines. Growing to 1.5 m tall by 2.5 m broad, it bears pinnately-divided fronds which emerge red and turn green when mature. It occurs in areas of high rainfall.

This plant is grown as an ornamental, and in the UK has gained the Royal Horticultural Society's Award of Garden Merit. It is an imposing architectural subject which is thought to be hardy down to -10 C. However it requires a sheltered position in well-cultivated, reliably moist soil.