Royal fern
Osmunda regalis var. spectabilis
Osmundaceae


Landscape Uses:

Specimen or accent groundcover in moist to wet sites.

Ecological Restoration Notes:

Availability:
Grown by one or two native plant nurseries in South Florida.
Description:
large herbaceous fern.
Height:
About 3-4 feet in height. About as broad as tall.
Growth Rate:
Moderate.
Range:
Widespread in eastern and central North America south to Miami-Dade County and the Monroe County mainland; West Indies, Mexico and Central America.
Habitats:
Swamps and marshes.
Soils:
Wet, poorly-drained organic soils, acid pH.
Nutritional Requirements:
High; requires rich organic soils for optimal growth.
Salt Water Tolerance:
Low; does not tolerate flooding by salt or brackish water.
Salt Wind Tolerance:
Low; salt wind may burn the leaves.
Drought Tolerance:
Low; requires moist to wet soils and is intolerant of long periods of drought.
Light Requirements:
Full sun to light shade or moderate shade.
Flower Color:
N/A.
Flower Characteristics:
There are no flowers; the plants reproduce by spores.
Flowering Season:
Spring.
Fruit:
Inconspicuous spores.
Wildlife and Ecology:
Horticultural Notes:
Can be grown from spores.
Comments:
It is listed as commercially exploited by the state of Florida.


Susan Trammell
George D. Gann
Shirley Denton