Species Osmunda regalis (Royal Fern, Flowering Fern, King Fern)

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Names

Scientific name: Osmunda regalis
Common name: Royal Fern, Flowering Fern, King Fern

Measurements

Height: 0 - 6 ft
Spread: 24 - 36 in
Spacing: 36 in
Growth Rate: Moderate

Requirements

Hardiness zones: 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Sunlight: Full Sun, Partial Shade, Full Shade
Soil Drainage: Moist but Well-drained
Soil type: Clay, Loam, Sand
Soil pH: Strongly acidic (5.1 - 5.5), Moderately acidic (5.6 - 6.0), Slightly acidic (6.1 - 6.5)

Physical Traits

Lifecycle: Perennial
Leaf lifecycle: Deciduous
Foliage color: Medium Green
Fall foliage: YellowBrown
Bloom time: Winter
Seasons of interest: Spring, Summer, Fall
Propagation methods: Spores, Division
Attracts: Birds

Taxonomy

Taxonomic Rank: Species
Author: L.
Publication: Sp. Pl. : 1065 (1753)

Superior Taxa

Kingdom: Plantae
Subkingdom: Pteridobiotina
Phylum: Polypodiophyta
Class: Polypodiopsida
Subclass: Polypodiidae
Order: Osmundales
Family: Osmundaceae
Genus: Osmunda

Synonyms

Polypodium acutum Osmunda brayeri Osmunda leschenaultii Osmunda plumieri Osmunda regalis var. obtusifolia Osmunda regalis var. brevifolia Aphyllocalpa regalis Struthiopteris regalis Osmunda longifolia Osmunda regalis var. longifolia Osmunda regalis var. capensis Osmunda spectabilis var. palustris Osmunda spicata

References

Osmunda regalis - Plant Finder, Missouri Botanical Garden, https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=l320, accessed October 18, 2024

Osmunda regalis (Royal fern) | Native Plants of North America, Lady Bird Johnson Wildflower Center, https://www.wildflower.org/plants/result.php?id_plant=osre, accessed October 18, 2024

Osmunda regalis (Flowering Fern, Royal Fern) | North Carolina Extension Gardener Plant Toolbox, North Carolina Extension Gardener Plant Toolbox, https://plants.ces.ncsu.edu/plants/osmunda-regalis/, accessed October 18, 2024

Osmunda regalis (Royal Fern): Minnesota Wildflowers, Minnesota Wildflowers, https://www.minnesotawildflowers.info/fern/royal-fern, accessed October 18, 2024

Osmunda regalis (Royal Fern), Gardenia, https://www.gardenia.net/plant/osmunda-regalis-royal-fern, accessed October 18, 2024

Osmunda regalis (royal fern): Go Botany, Native Plant Trust, https://gobotany.nativeplanttrust.org/species/osmunda/regalis/, accessed October 18, 2024

Royal Fern | Osmunda regalis, Adirondacks Forever Wild, https://wildadirondacks.org/adirondack-ferns-royal-fern-osmunda-regalis.html, accessed October 18, 2024

World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024