American Featherfoil care guide
American Featherfoil (Hottonia inflata) — medium light, 16-24 °C, pH 6-7.5, no CO2.
Compiled by Aquairi from published sources · Published · Updated
Overview
American Featherfoil (Hottonia inflata) is an aquatic plant of the family Primulaceae, listed in the Aquairi knowledge base as an intermediate-level species. It is typically grown under medium light and without obligatory CO2 injection on nutrient-rich aquasoil. North American floating-rosette plant with delicate, finely divided submerged leaves and inflated flower stalks. Useful as a coldwater accent; relatively rare in the hobby.
Taxonomy
- Family: Primulaceae
- Genus: Hottonia
- Scientific name: Hottonia inflata
Habitat
Hottonia palustris (Primulaceae) is a European water plant of clean, cool, still or slow-flowing waters with finely divided submersed leaves and emergent flower spikes. It is rare in much of its range due to habitat loss. In the Aquairi knowledge base, populations associated with this form are recorded from North America.
Growth requirements
- Lighting: medium
- CO2: not required
- Temperature: 16-24 °C (61-75 °F)
- pH: 6-7.5
- GH: 3-14 °dGH
- Substrate: nutrient-rich aquasoil
- Maximum height: 30 cm
- Growth rate: medium
- Recommended placement: midground
Placement
Background stem; tolerates cooler water than most aquarium plants and is often grown in cold-water layouts and unheated tanks. In the Aquairi knowledge base this form is recommended for the midground under medium light and without obligatory CO2 injection, using nutrient-rich aquasoil.
Propagation
Propagated by cuttings; horizontal stems also produce side shoots that can be separated and replanted. Documented propagation techniques for this entry include: stem cuttings.
Common issues
Sensitive to high water temperature and to elevated nutrient levels; cool, clean water supports the most vigorous submersed growth.
Propagating Hottonia inflata (American Featherfoil)
Overview
Hottonia inflata, the American featherfoil, is an aquatic plant in the family Primulaceae that occurs sporadically across the eastern United States, from Texas to Maine, in the coastal plains of the Atlantic and Gulf of Mexico. It anchors with basal fibrous roots in the mud while thin, feather-like roots drift freely in the water. Its finely divided leaves are linear or filiform with pinnate or bipinnate divisions arranged alternately, oppositely, or in whorls, and its small white or violet flowers sit at the end of distinctly inflated stalks.
Propagation Method (Cuttings)
Featherfoil is a stem plant that propagates by cuttings: snip a healthy top section, remove the lowest leaves, and replant it so the buried node can root, while the parent base pushes new side shoots. Because the stems carry free-floating feathery roots, cuttings establish readily. As a temperate species it is best propagated during its active growing phase rather than when it is winding down toward flowering.
Step-by-Step
- Choose a vigorous shoot and cut a 5-10 cm top section below a node.
- Strip the leaves from the lower portion that will sit in the substrate.
- Anchor the bare end in soft mud-like substrate so the node can take hold.
- Leave the rooted base in place to develop new side shoots.
- Keep water levels and temperature steady while the cutting establishes.
Conditions for Healthy Growth
As a North American native of temperate ponds and swamps, featherfoil prefers cool water rather than tropical heat. Give it a soft, nutrient-rich, mud-like substrate to mimic its natural footing and moderate light. Stable, relatively unchanging water levels echo the still ponds and ditches where it grows.
Trimming & Maintenance
Trim the feathery stems to keep the rosette tidy and remove tops for replanting as fresh cuttings. Because the plant tends toward an annual rhythm that ends in flowering on inflated stalks, taking cuttings before that phase preserves vegetative stock for the next cycle.
Common Challenges
- Warm tropical tanks suit it poorly; it favors cooler temperate water.
- Once it shifts to flowering on inflated stalks, vegetative growth slows, so propagate beforehand.
- It is uncommon in the hobby, so sourcing genuine stock can be difficult.