$4.25–$18.25
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Aspleniaceae
Asplenium onopteris
Asplenium onopteris
Also known as Asplenium adiantum-nigrum subsp. onopteris, Asplenium adiantum-nigrum subsp. acutum, Asplenium adiantum-nigrum var. onopteris, Asplenium adiantum-nigrum var. plumosum
Zones 5–9Sun Partial ShadeWater ModerateCare Moderate
Indoor Plants · Native Plants · Fern · Shade Tolerant · Evergreen · Humidity Loving · Spleenwort · Indoor Fern · Mediterranean · Woodland · Air Purifying · Low Light
Pet-safeAir-purifyingIndoor
In stock at 1 nurseryStock updated 9/6/2026
Asplenium onopteris, the acute-lobed spleenwort, is an elegant fern that prefers cool, shaded conditions with consistently moist, humus-rich soil. It thrives in dappled shade and appreciates high humidity, making it a great candidate for a shaded garden border or a humid bathroom indoors. Avoid direct sunlight and allow good air circulation to keep fronds healthy and green.
Growing conditions
The details behind the basics
- Daily light
- 3 hours
- Watering
- Water thoroughly until the soil is evenly moist but never waterlogged; allow the top inch to dry between waterings · Every 7-10 days
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 6–7.5
- Temperature
- 0°F to 90°F
- Cycle
- Perennial
- Propagation
- Seed, Cutting
Hardiness
USDA 5a-9b
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Form & growth
Mature size and habit
- Mature height
- 2 ft – 5 ft
- Spread
- 3 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
- Albania, Algeria, Azores, Baleares, Bulgaria, Canary Is., Corse, Cyprus, France, Greece, Iran, Ireland, Italy, Kriti, Lebanon-Syria, Libya, Madeira, Morocco, Palestine, Portugal
Sources: trefle, usda
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