Water regularly after planting until established. Once established, Woolly Slimpod is drought-tolerant and prefers to dry out between waterings. Overwatering can lead to root rot, so ensure good drainage.

Aim for deep watering infrequently during dry spells.

Deadheading spent flowers can encourage a tidier appearance and potentially a second flush of blooms, though this is not strictly necessary for the plant's health.

Pruning can also be done in late winter or early spring to remove any dead or damaged stems before new growth emerges. This helps maintain a compact form.

Amsonia arenaria can be propagated by seed, sown in autumn or early spring. It also readily self-seeds.

Division of established clumps in early spring is another effective method for increasing the plant population and rejuvenating older specimens. Ensure divisions have healthy roots and shoots.

Repotting is generally not necessary for Amsonia arenaria as it prefers to be left undisturbed once established and can become quite woody.

If a container-grown plant becomes root-bound, repot in spring into a slightly larger container with well-draining potting mix. Avoid overpotting.