
trefle.io · Taken May 9, 2019 by Bigand Mathieu (cc-by-sa)
Ophioglossaceae
Adder's-tongue
Ophioglossum vulgatum
Also known as Adder's-tongue fern, Adder's fern, Serpent's tongue, Ophioglossum vulgatum var. typicum
Native Plants · Fern · Woodland · Native · Shade · Moisture-Loving · Rare · Perennial · Ground Cover · Ophioglossum
Adder's-tongue fern thrives in consistently moist, humus-rich soil in a partially shaded woodland setting and is very difficult to establish outside its natural habitat. It does not tolerate drought or disturbance well, making it best suited for dedicated native plant or woodland gardens. Avoid disturbing the roots and replicate its natural meadow or woodland-edge conditions as closely as possible.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Keep soil consistently moist but not waterlogged · Every 5-7 days
- Maintenance
- High
- Soil pH
- 7–7.5
- Temperature
- -30°F to 95°F
- Cycle
- Perennial
Hardiness
USDA 4a-9b
Form & growth
Mature size and habit
- Spacing
- 6 in apart
- Growth rate
- Moderate
- Flowers
- No
Ecology & origin
Where it belongs and what it brings
- Native to
- Alabama, Albania, Algeria, Altay, Argentina South, Arizona, Arkansas, Austria, Baltic States, Belarus, Belgium, Bulgaria, Burundi, Buryatiya, Cape Provinces, Central European Rus, Chile South, China North-Central, China South-Central, China Southeast
Sources: trefle, usda
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