Keep Veronica opaca consistently moist during its growing season, but avoid waterlogged soil. Allow the top 1-2 cm of soil to dry out slightly between waterings, especially in warmer weather.

Reduce watering in winter to prevent root rot, ensuring the soil is not completely dry.

Deadhead spent flowers regularly to encourage more blooms and maintain a tidy appearance. In late autumn or early spring, prune back any dead, damaged, or overgrown stems to the base.

This promotes vigorous new growth and prevents the plant from becoming leggy.

Veronica opaca can be propagated from stem cuttings taken in late spring or early summer. Select healthy, non-flowering shoots, cut them to about 7-10 cm long, and remove lower leaves.

Dip the cut end in rooting hormone and plant in a well-draining potting mix.

Repot Veronica opaca every 2-3 years or when it becomes root-bound, typically in spring before new growth begins. Choose a pot that is only slightly larger than the current one.

Use a good quality, well-draining potting mix and ensure the plant is at the same depth as before.