trefle.io · Taken Jul 8, 2021 by Christoph Stoll (cc-by-sa)
Aspleniaceae
Scented oakfern
Gymnocarpium robertianum
Also known as Oak fern, Gymnocarpium fern, Fragrant oakfern, Polypodium dryopteris subsp. robertianum
Native Plants · Fern · Woodland · Shade · Ground Cover · Cool Climate · Moist Soil · Rockery · Native · Aspleniaceae · Scented
Scented oakfern is a delicate, spreading fern that thrives in cool, shaded spots with consistently moist, humus-rich, alkaline soil — ideal for a woodland or rock garden. It releases a faint pleasant scent when its foliage is handled. Avoid direct sun and dry conditions, and mulch around the base to retain soil moisture.
Growing conditions
The details behind the basics
- Daily light
- 3 hours
- Watering
- Keep soil consistently moist but not waterlogged; mist fronds regularly · Every 5-7 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 6–7.5
- Temperature
- -20°F to 90°F
- Cycle
- Perennial
- Propagation
- Seed, Division
Hardiness
USDA 4a-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Alaska, Albania, Algeria, Altay, Austria, Baltic States, Belarus, Belgium, Bulgaria, Central European Rus, Corse, Czechoslovakia, East European Russia, Finland, France, Germany, Great Britain, Greece, Hungary, Illinois
Sources: trefle
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