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PlantSnap
Plant Care
Cinnamon fern
(Osmundastrum cinnamomeum)
Also Known As
Cinnamon fern, cinnamon fern, osmunda, cinna fern
About This Plant
Osmundastrum cinnamomeum is a large, deciduous fern that can grow up to 6 feet (1.8 meters) tall. It has a crown of fronds that can reach up to 8 feet (2.4 meters) across. The fronds are bipinnate, with each pinnae having a serrated edge. The fern produces spores on separate fronds called fertile fronds.
Plant Care Instructions
Outdoor Size Range
Height: 3-6 feet (0.9-1.8 meters), Spread: 2-3 feet (0.6-0.9 meters)
Light Requirements
Cinnamon ferns prefer partial to full shade. Direct sunlight can scorch the fronds.
Humidity Needs
Cinnamon ferns prefer high humidity levels. Mist the fronds regularly or place a tray of water near the plant to increase humidity.
Fertilizing Schedule
Cinnamon ferns do not require fertilizer, but a light application of balanced fertilizer in the spring can help promote growth.
Pruning Guidelines
Cinnamon ferns do not require pruning, but removing dead fronds can help maintain the plant's appearance.
Common Pests and Diseases
Cinnamon ferns are generally pest-free, but can be susceptible to scale insects and mealybugs.
Indoor Size Range
Not suitable for indoor growth
Watering Schedule
Cinnamon ferns prefer consistently moist soil. Water regularly, but do not let the soil become waterlogged.
Temperature Range
Cinnamon ferns prefer cool to moderate temperatures between 60-75°F (15.5-23.9°C).
Growing Season
Cinnamon ferns grow in the spring and summer.
Growing Difficulty Level
Cinnamon ferns are easy to grow and require minimal maintenance.
USDA Hardiness Zones
USDA hardiness zones 3-9
Did You Know?
The fiddleheads of the Cinnamon fern are edible and have a flavor similar to asparagus. However, they must be cooked thoroughly to avoid food poisoning.
