Hydrocharis laevigata thrives in consistently moist to waterlogged conditions. It is an aquatic or semi-aquatic plant, so ensure its roots are submerged or the soil is perpetually saturated.

Avoid allowing the substrate to dry out completely, which can be detrimental to its health and growth.

Pruning for Hydrocharis laevigata primarily involves removing any dead, decaying, or yellowing leaves and stems to maintain plant health and aesthetics. Since it's an aquatic plant that spreads via runners, you may also want to thin out overcrowded areas to promote better circulation and prevent excessive matting.

Hydrocharis laevigata is easily propagated vegetatively. It produces numerous runners from which new plantlets develop. Simply detach these small plantlets and allow them to root in the water or substrate.

This method ensures rapid multiplication of the species.

Repotting is generally not required for Hydrocharis laevigata, as it is a free-floating aquatic plant or can root directly in pond substrates. If grown in a container, it will likely fill the space with its runners.

If it becomes too dense, simply divide and replant sections into new areas or pots.