trefle.io · Taken May 11, 2015 by huy HO (cc-by-sa)
Osmundaceae
Royal fern
Osmunda regalis
Also known as King fern, Flowering fern, Osmunda regalis, Osmunda regalis var. incisa
Native Plants · Royal Fern · Osmunda · Fern · Shade Plant · Moisture Loving · Woodland · Pond Edge · Architectural · Perennial · Temperate
Royal fern is a majestic, architectural fern that thrives in moist to boggy soil in dappled shade, making it ideal for woodland gardens and pond edges. It requires consistently high moisture and will struggle if the soil dries out, so mulch heavily around the base to retain water. This slow-establishing but long-lived perennial rewards patience with impressive fronds that can reach up to 6 feet tall.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Keep soil consistently moist to wet; never allow to dry out completely · Every 3-5 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 4–6
- Temperature
- -25°F to 85°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 36 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Green · Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Albania, Algeria, Austria, Azores, Belgium, Bulgaria, Cape Verde, Corse, Czechoslovakia, Denmark, France, Germany, Great Britain, Greece, Hungary, Iran, Ireland, Italy, Kriti, Lebanon-Syria
- Attracts
- Birds
Sources: trefle, usda
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