Rorippa amphibia thrives in consistently moist to wet soil. Water regularly, especially during dry periods, to maintain a saturated environment. Avoid letting the soil dry out completely, as this can stress the plant.

In containers, ensure the drainage holes are not blocked to prevent waterlogging while keeping the soil consistently damp.

Pruning is generally minimal for Rorippa amphibia. Remove any dead or yellowing foliage as it appears to maintain plant health and appearance.

If the plant becomes too leggy or overgrown, light trimming can encourage a bushier habit. Deadheading spent flowers can prevent self-seeding if that is undesirable.

Rorippa amphibia is easily propagated by seeds sown in moist soil in spring or autumn. It can also be propagated vegetatively from stem cuttings taken in spring or summer.

These cuttings root readily in water or moist potting mix. Division of established clumps in spring is another effective method.

Repot Rorippa amphibia when it outgrows its container, typically every 1-2 years. This is best done in spring before new growth begins.

Use a heavy, well-draining soil mix that retains moisture, or plant directly into a pond edge substrate. Ensure the pot has adequate drainage to prevent root rot.