American Pillwort
Pilularia americana
Family: Marsileaceae
American Pillwort grows in full sun to partial shade and prefers shallow wet mud or seasonal pools. Water needs: High.
American Pillwort Plant Guide
American Pillwort growing information includes sunlight requirements of Full sun to partial shade, soil conditions listed as Shallow wet mud or seasonal pools with a soil pH of 5.5-7.5, and High water needs. The listed hardiness zones are 5-10. For propagation reference, the database lists germination or establishment information for American Pillwort as 14-60 days from spores, with planting or establishment depth listed as Surface sow. Days to maturity are listed as 1-2 years.
Plant Overview
American Pillwort (Pilularia americana) is listed in the Marsileaceae family and categorized as a aquatic 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 Moderate.
- Plant ID
- PLT-0749
- Family
- Marsileaceae
- Plant type
- Aquatic fern
- Life cycle
- Perennial
- Difficulty
- Moderate
Growing Conditions
American Pillwort is listed for full sun to partial shade conditions. Water needs are listed as high. The database soil reference is Shallow wet mud or seasonal pools. The listed soil pH range is 5.5-7.5, and the listed hardiness range is 5-10.
- Hardiness zones
- 5-10
- Sunlight
- Full sun to partial shade
- Soil
- Shallow wet mud or seasonal pools
- Soil pH
- 5.5-7.5
- Water needs
- High
Seed & Germination
For seed starting, the listed germination time is 14-60 days from spores and the seed depth is Surface sow. The listed time to maturity is 1-2 years. Use these values as general reference points and adjust for local climate, seed source, and growing conditions.
- Germination
- 14-60 days from spores
- Seed depth
- Surface sow
Harvest & Propagation
- Days to maturity
- 1-2 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.