Pennsylvania pellitory prefers consistently moist soil. Water thoroughly when the top centimeter of soil begins to feel dry. Avoid allowing the soil to completely dry out, as this can stress the plant.

Reduce watering frequency during cooler months when growth slows.

Pruning is typically not a major requirement for Pennsylvania pellitory. If the plant becomes leggy or overgrown, you can prune it back in spring to encourage bushier growth.

Dead or damaged foliage can be removed at any time to maintain a tidy appearance.

Pennsylvania pellitory readily self-seeds in suitable conditions. To propagate intentionally, you can collect seeds in late summer or fall and sow them in pots or directly in the garden.

Divisions of established clumps can also be made in spring.

Repotting is usually only necessary if the plant is grown in a container and becomes root-bound. This typically occurs every 1-2 years.

Choose a pot that is only slightly larger than the current one and repot in spring using fresh, well-draining potting mix.