Piper umbellatum prefers consistently moist soil. Water thoroughly when the top 2-3 cm of soil feels dry to the touch. Avoid letting the plant sit in waterlogged conditions, as this can lead to root rot.

Reduce watering slightly during cooler months, but never allow the soil to dry out completely.

Prune Piper umbellatum to maintain desired shape and size, and to encourage bushier growth. Remove any yellowing or dead leaves. Pinch back the tips of stems to promote branching.

Pruning can be done at any time of year, but is best carried out in spring.

Propagate Piper umbellatum from stem cuttings. Take 4-6 inch cuttings from healthy stems, remove the lower leaves, and dip the cut end in rooting hormone. Plant the cuttings in moist, well-draining potting mix.

Keep the cuttings warm and humid until roots develop.

Repot Piper umbellatum every 1-2 years, or when it becomes root-bound. Choose a pot that is 1-2 inches larger in diameter than the current pot. Use a well-draining potting mix.

Repotting is best done in spring, coinciding with the start of the active growing season.