Cinnamon Fern (Osmunda cinnamomea)

Quick Facts

• Type: fern
• Size: 2-4 ft tall
• Sun: part
• Water: high
• Soil: Rich, moist to wet soils
• USDA zones: 8-10

Tall green fronds ring a central spike of cinnamon-colored fertile fronds in spring.

A stately wet-shade fern; the fuzzy fiddleheads are a spring highlight. Now often listed as Osmundastrum cinnamomeum.

In the Landscape

A dramatic vase-shaped specimen for moist shade gardens, stream banks, and woodland edges. The cinnamon-colored fertile fronds rising from the green vase are unforgettable.

Care & Propagation

Plant in spring in part to full shade in rich, consistently moist soil. Never let it dry out — it will crisp. Leave the old fronds through winter; cut back in early spring before new growth.

Divide large crowns in early spring before the fiddleheads emerge. It resents being moved, so divide only when necessary and replant immediately.

Wildlife Value

The dense vase shelters salamanders, frogs, and ground-nesting birds. The fibrous old root mass (osmunda fiber) was historically harvested for orchid potting — buy nursery-grown, never wild-collected.

🌱 Fun fact: The 'cinnamon sticks' rising from the center aren't flowers — they're spore-bearing fronds. The genus Osmunda is ancient: fossils 200 million years old look nearly identical.

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🌴 In Florida

A stately wet-shade fern; the fuzzy fiddleheads are a spring highlight. Now often listed as Osmundastrum cinnamomeum.

🌿 Keep exploring

More Florida natives worth meeting:

• Brittle Maidenhair Fern (Adiantum tenerum)
• Broad beech fern (Phegopteris hexagonoptera)
• Cinnamon fern (Osmundastrum cinnamomeum)