Whole, undivided fronds give this fern an unmistakably bold outline.
Form & character
The rich green blades are strap-shaped, with margins that may ripple gently. Linear groups of spore cases form across the undersides, creating a second pattern beneath the smooth upper surface.
A place to grow
A humus-rich, moist but freely draining position suits it well. Shelter the foliage from strong midday sun, and keep a newly planted fern watered during its first season.
A detail to notice
Compare the shape of one complete frond with a divided fern nearby. Notice its edge, central line and the way the blades overlap without needing to collect a leaf.
Further reading
RHS / Asplenium scolopendrium ->
Sources consulted September 2026. Summaries are original; linked pages provide fuller botanical and cultivation detail.