Brown's waterleaf prefers consistently moist soil. Water regularly, especially during dry spells, ensuring the soil does not completely dry out. Avoid waterlogging, as this can lead to root rot.

A good soak when the top inch of soil feels dry is ideal.

Pruning is minimal for Brown's waterleaf. Dead or damaged foliage can be removed at any time. Deadheading spent flowers can encourage a tidier appearance, but is not strictly necessary.

Pruning back in late fall or early spring can help manage its spread if desired.

Brown's waterleaf can be propagated by division of established clumps in early spring. Seeds can also be sown outdoors in fall or stratified indoors before spring sowing.

It readily self-seeds in suitable conditions, so collecting seeds may not always be necessary.

Repotting is typically only necessary for container-grown plants or when dividing larger clumps. Choose a pot with adequate drainage.

If dividing, gently separate the root ball and repot the sections into fresh, well-draining potting mix. Water thoroughly after repotting.