Osmunda cinnamomea
$21.99
Osmundastrum cinnamomeum is a long-lived deciduous fern with tall yellow-green sterile fronds surrounding shorter, upright cinnamon-brown fertile fronds in spring.
- Description
- Additional information
Description
Osmundastrum cinnamomeum, the cinnamon fern, forms a substantial vase-shaped clump from compact horizontal rhizomes. Erect, bipinnate yellow- to blue-green sterile fronds surround separate, stiff fertile fronds that turn a distinctive cinnamon brown as their sporangia mature in spring.
Grow in partial to full shade in moist, humus-rich, acidic soil. It adapts to medium or boggy ground and suits woodland, rain, streamside, and pond-margin gardens. Established plants are slow to settle but vigorous and long-lived; consistent moisture produces the largest fronds, while dry soil can trigger dormancy.
Additional information
| Height | 60 cm – 180 cm |
|---|---|
| Spread | 50 cm – 100 cm |
| Synonyms | Osmunda cinnamomea, Struthiopteris cinnamomea |
| Family | Osmundaceae |
| Propagation | Divide well-established clumps in autumn or early spring, or sow freshly ripened spores promptly because viability declines quickly. |
| Pests | Generally pest-free; slugs and snails may occasionally graze young emerging fronds. |
| Diseases | Generally disease-free; crown or rhizome rot can occur if stagnant water and poor aeration persist. |
| Pruning | No routine pruning is needed; remove old collapsed fronds in late winter before new fiddleheads emerge if a tidier appearance is desired. |
| Hazardous | unknown |
| Variegated | no |
| Watering instructions | Keep the root zone consistently moist, especially during establishment and summer heat; do not allow the rhizome to dry out. |
| Sunlight instructions | Grow in partial or full shade; brighter conditions are acceptable only where the soil remains consistently moist. |
| Aspect | East, West, North |
| Foliage | Deciduous |
| Habit | Clump-former |
| Moisture | Wet or Damp Soil, Moist but Well Drained |
| Ph | Acid |
| Position | Full shade, Partial shade, Light shade |
| Shape | Upright, Spreading |
| Suggest planting location | Woodland Garden, Shade Garden, Cottage and informal gardens, Bog Garden, Rain Garden, Pond Margin, Streamside |
| Type | Fern |
| Use for | Bedding Plant |
| Years to max height | 2 |
| Drought resistance | no |
| Soil | Clay, Loam, Sand |
| Local names | Cinnamon Fern, Buckhorn Fern, Zimtfarn |
| Blomidon Item No | Z2OSMCI0001G |
| Common Name | Cinnamon Fern |