Royal Fern
Osmunda regalis
Plant Details
USDA Plant Hardiness Zones: 3a-10b  Find Your Zone
Plant Type:Â Perennial
Height at Maturity:Â With consistently moist soil will grow up to 6′ tall!
Width at Maturity:Â 2-3′
Spacing:Â 2′ for mass plantings, 6′ for space between
Spacing:Â 2′ for mass plantings, 6′ for space between
Growth Habit / Form:Â Arching, Clumping, Upright
Growth Rate:Â Moderate
Flower Color: Â None
Flower Size:Â NA
Flowering Period:Â NA
Flower Type:Â NA
Fragrant Flowers:Â NA
Foliage Color:Â Green, Fertile fronds are Cinnamon
Fragrant Foliage:Â No
Berries:Â Â No
Berry Color:Â NA
Sun Needs:Â Full Shade or Part Shade, Morning Sun With Afternoon Shade, All Day Filtered or Dappled SunÂ
Water Needs:Â Â Average
Soil Type:Â Â Clay (amended), Loam, Sand (amended), SiltÂ
Soil Moisture / Drainage:Â Moist to Well Drained Moist
Soil pH:Â 6.5 – 7.5 (Slightly Acid to Slightly Alkaline)
Maintenance / Care:Â Low
Attracts:Â Visual Attention
Resistances:Â Deer, Disease, Drought, Heat, Humidity, Insect, Moist Soil, Rabbit, Shade
Description
One of if not the largest North American native ferns, the large and broad fronds of the Royal Fern are composed of leaflets with an appearance similar to plants in the pea family. The spores of this fern are located in attractive brown, tassel-like, fertile clusters at the tips thus giving rise to the the other common name of “Flowering Fern.” This one can be grown in average garden soils but thrives in bogs or wet areas where it can reach upwards of 6 feet in height and 3 feet wide. A regal and majestic beauty in shady sites with consistently moist soil.
Landscape & Garden Uses
Growing up to 6 feet tall and 2 to 3 feet wide, the Royal Fern is a wonderful accent, grouping or background in shade or woodland gardens and waterside settings such as streams, ponds, lakes, swamps and other areas with moisture retentive soils.Â
Cultural Preferences
The Royal Fern is easy to grow in a variety of moist but well-drained soils in part shade to full shade. It prefers a consistently moist soil rich in organic matter and can tolerate more sun with adequate moisture. This fern is semi-evergreen and will retain green foliage throughout the winter in warmer climates. In colder climates it is deciduous. Maintenance is minimal. It requires very little if any pruning, only to removed a damaged frond and during cleanup at the end of winter.
Helpful Articles
Click on a link below to find helpful advice from our experts on how to plant, fertilize, prune and water perennial ferns.
How To Plant Perennial Ferns
How To Prune Or Cut Back Perennial fern Plants
How To Fertilize & Water Perennial Fern Plants
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