Chelone glabra prefers consistently moist soil. Water regularly during dry spells, especially in full sun. Avoid waterlogged conditions, as this can lead to root rot. Aim for the soil to be damp but not saturated.

Check the soil moisture frequently.

Deadhead spent flowers to encourage a tidier appearance and potentially a second bloom. In late winter or early spring, prune back old stems to about 15 cm from the ground to stimulate fresh growth.

This also helps maintain plant vigor.

White Turtlehead can be propagated by division of established clumps in early spring or fall. Seeds can also be sown in fall or stratified indoors over winter.

Cuttings can be taken in late spring or early summer from semi-hardwood.

Repot container-grown plants every 2-3 years, preferably in spring as new growth begins. Choose a pot that is slightly larger than the current one, ensuring good drainage.

Use a well-draining potting mix that retains some moisture.