perennial · design plant record

Chelone glabra

White turtlehead

Upright pale late-season flowers for a moisture-dependent middle layer.

Photographs show the source plant or captioned cultivar, season and setting. They do not document one of our illustrative garden layouts as a built project.

Height at maturity

0.3–0.91 m (1–3 ft)

Spread at maturity

0.3–0.61 m (1–2 ft)

Light

Sun / Part shade

Moisture

Moist, draining soil / Wet-soil tolerance (check details)

Source-reported USDA zones

3–8 · verify subzone and cultivar

Principal seasonal role

Autumn, Summer

Fit it to the site

Fertile, moist ground in sun to partial shade.

Too much shade can cause flopping; drought stress can bring mildew.

Keep the care in the decision

Check moisture during dry periods and review the outline as groups enlarge.

Origin & safety checks

SE. Canada, N. Central & E. U.S.A. Confirm local native range and restrictions.

Toxicity and pet safety are not assessed here. An ornamental record is not an edible-use recommendation.

Check current invasive restrictions with your local plant-health or extension authority. For pets, use the exact botanical name in a veterinary toxicity reference; for potential ingestion or exposure, get appropriate professional advice rather than relying on a design guide.