fern · design plant record

Osmundastrum cinnamomeum

Cinnamon fern

Large deciduous fronds and separate cinnamon-coloured fertile stems.

Photographs show the source plant or captioned cultivar, season and setting. They do not document one of our illustrative garden layouts as a built project.

Height at maturity

0.61–1.83 m (2–6 ft)

Spread at maturity

0.61–1.22 m (2–4 ft)

Light

Part shade / Shade

Moisture

Moist, draining soil / Wet-soil tolerance (check details)

Source-reported USDA zones

4–9 · verify subzone and cultivar

Principal seasonal role

Spring, Summer, Autumn

Fit it to the site

Moist to wet, humus-rich acidic soil in shade.

Dry conditions can cause dormancy; the 1.83 m upper height needs a larger setting than a small front edge.

Keep the care in the decision

Allow slow establishment and dependable moisture before expecting a full-sized clump.

Origin & safety checks

Eastern North America, tropical Americas and eastern Asia; verify the local native range and appropriate population.

Toxicity and pet safety are not assessed here. An ornamental record is not an edible-use recommendation.

Check current invasive restrictions with your local plant-health or extension authority. For pets, use the exact botanical name in a veterinary toxicity reference; for potential ingestion or exposure, get appropriate professional advice rather than relying on a design guide.