Hornwort
Ceratophyllum demersum
Family: Ceratophyllaceae
Hornwort grows in full sun to bright light and prefers free-floating or anchored aquatic. Water needs: High.
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Hornwort Plant Guide
Hornwort growing information includes sunlight requirements of Full sun to bright light, soil conditions listed as Free-floating or anchored aquatic with a soil pH of 6.0-8.0, and High water needs. The listed hardiness zones are 3-11. For propagation reference, the database lists germination or establishment information for Hornwort as 14-30 days, with planting or establishment depth listed as Submerged. Days to maturity are listed as 1 season.
Plant Overview
Hornwort (Ceratophyllum demersum) is listed in the Ceratophyllaceae family and categorized as a aquatic plant 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 Easy.
- Plant ID
- PLT-1404
- Family
- Ceratophyllaceae
- Plant type
- Aquatic Plant
- Life cycle
- Perennial
- Difficulty
- Easy
Growing Conditions
Hornwort is listed for full sun to bright light conditions. Water needs are listed as high. The database soil reference is Free-floating or anchored aquatic. The listed soil pH range is 6.0-8.0, and the listed hardiness range is 3-11.
- Hardiness zones
- 3-11
- Sunlight
- Full sun to bright light
- Soil
- Free-floating or anchored aquatic
- Soil pH
- 6.0-8.0
- Water needs
- High
Seed & Germination
For seed starting, the listed germination time is 14-30 days and the seed depth is Submerged. The listed time to maturity is 1 season. Use these values as general reference points and adjust for local climate, seed source, and growing conditions.
- Germination
- 14-30 days
- Seed depth
- Submerged
Harvest & Propagation
- Days to maturity
- 1 season
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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.