Yerba mansa thrives in consistently moist soil, mimicking its native wetland habitats. Water regularly, ensuring the soil never dries out completely. In drier climates or during hot periods, increase watering frequency.

Soggy soil is generally tolerated, but prolonged waterlogging without drainage may cause root issues.

Pruning is primarily for aesthetic purposes and to manage spread. Trim back any overgrown or dead stems in late winter or early spring before new growth begins. This also encourages a bushier habit.

Remove spent flower stalks if desired to prevent self-seeding.

Yerba mansa is easily propagated by division of its rhizomatous roots in early spring. Simply dig up sections of the root system that have at least a few growing points and replant them.

It can also be propagated from seed, sown in moist soil in spring.

Repotting is typically not necessary for established outdoor plants, as Yerba mansa is a rhizomatous perennial that spreads. If grown in a container, repot every 2-3 years in spring into a slightly larger pot with fresh, moist potting mix to accommodate root growth.