Hornleaf Riverweed is an aquatic plant and requires constant immersion in flowing water. It thrives in clear, well-oxygenated streams and rivers. Avoid allowing the plant to dry out at any point, as this will be fatal.

Natural water sources are ideal; artificial cultivation requires careful mimicry of these conditions.

Pruning is not typically necessary for Hornleaf Riverweed. Its growth habit is adapted to strong currents, and excessive trimming could disrupt its anchoring.

If overgrowth becomes an issue in a controlled environment, carefully remove excess biomass by hand, ensuring the remaining plant is securely attached to its substrate.

Propagation of Podostemum ceratophyllum is primarily achieved through vegetative means.

Fragments of the plant, including its anchoring structures, can attach to suitable substrates in flowing water and develop into new individuals. Natural fragmentation and dispersal by currents are common methods.

Repotting is not applicable to Hornleaf Riverweed in the traditional sense. This plant anchors itself to hard substrates like rocks or logs.

In cultivation, ensure it is firmly attached to a suitable material before introducing it to flowing water. It does not have a root ball that requires larger containers.