Adder Tongue Fern
Ophioglossum pusillum
Family: Ophioglossaceae
Adder Tongue Fern grows in full sun to partial shade and prefers moist to wet soil. Water needs: Moderate to high.
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How to Grow Adder Tongue Fern
Adder Tongue Fern growing information includes sunlight requirements of Full sun to partial shade, soil conditions listed as Moist to wet soil with a soil pH of 5.0-7.0, and Moderate to high water needs. The listed hardiness zones are 3-8. For propagation reference, the database lists germination or establishment information for Adder Tongue Fern as 30-90 days from spores, with planting or establishment depth listed as Surface sow. Days to maturity are listed as 2-3 years.
Plant Overview
Adder Tongue Fern (Ophioglossum pusillum) is listed in the Ophioglossaceae family and categorized as a fern with a perennial life cycle. This profile summarizes growing information for hardiness, light, soil, water, seed starting, maturity, and other available cultivation details. Difficulty is listed as Difficult.
- Plant ID
- PLT-0746
- Family
- Ophioglossaceae
- Plant type
- Fern
- Life cycle
- Perennial
- Difficulty
- Difficult
Growing Conditions
Adder Tongue Fern is listed for full sun to partial shade conditions. Water needs are listed as moderate to high. The database soil reference is Moist to wet soil. The listed soil pH range is 5.0-7.0, and the listed hardiness range is 3-8.
- Hardiness zones
- 3-8
- Sunlight
- Full sun to partial shade
- Soil
- Moist to wet soil
- Soil pH
- 5.0-7.0
- Water needs
- Moderate to high
Seed & Germination
For seed starting, the listed germination time is 30-90 days from spores and the seed depth is Surface sow. The listed time to maturity is 2-3 years. Use these values as general reference points and adjust for local climate, seed source, and growing conditions.
- Germination
- 30-90 days from spores
- Seed depth
- Surface sow
Harvest & Propagation
- Days to maturity
- 2-3 years
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Growing Reference Note
Plant performance can vary with climate, soil, weather, cultivar, seed quality, and gardening methods. The values on this page are general database reference ranges rather than a substitute for local extension guidance or seed-packet instructions.