Osmunda regalis, commonly called royal fern, is a tall, deciduous, Missouri native fern which usually occurs on moist bluffs and ledges and along streams (sometimes growing in the water), primarily in the southeastern Ozark region of the State.
Royal ferns in the garden like consistently moist soil that is acidic and rich with organic matter; however, they are adaptable to lesser conditions as long as regular water is provided. Keep the soil moist.
Osmunda regalis has no toxic effects reported. Osmunda regalis, or royal fern, is a species of deciduous fern, native to Europe, Africa and Asia, growing in woodland bogs and on the banks of streams. The species is sometimes known as flowering fern due to the appearance of its fertile fronds.