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Osmunda regalis

Also called Flowering Fern


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Chris Evans, River to River CWMA, Bugwood.org

Chris Evans, River to River CWMA, Bugwood.org

More About Osmunda regalis

  • Unique, widely spaced, oblong leaflets, with a distinct, central vein
  • Pale green leaves in sunlight
  • Deeper green in shade with reddish stems
  • Some fronds are fertile and have brown, flower-like leaflets at the tip
  • Upright and clumping form with wiry, exposed, black roots
  • A deeply rooted fern when established
  • Deciduous

Interesting Notes:

Native to Ontario

Zone:

4

Height:

90-150 cm

Spread:

60-90 cm

Colour:

Non-flowering
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Royal Fern Growing and Maintenance Tips

Osmunda thrives in a moist soil, in partial to full shade, need constant moisture and do not like to dry out. In wet bogs or swamps, it is known to grow to extreme heights of 200 cm plus and can replicate a dense jungle. With adequate moisture, they will thrive in full sun. 


Osmunda regalis Characteristics

Partial Sun/Shade
Partial Sun/Shade
Full Shade
Full Shade
Deer Resistant
Deer Resistant
Low Maintenance
Low Maintenance
Native to Ontario
Native to Ontario
Bog or water garden
Bog or water garden

Soil Moisture

Wetland (Root submerged)
Moist to Average
Moist to Wet Soils

Growth Rate

Medium

Attributes

Deciduous

Habit

Clumping

Foliage Color

Green

Landscape uses

Naturalizing
Woodland/woods edge