perennial · design plant record

Physostegia virginiana

Obedient plant

Upright summer-to-autumn flower spikes in a potentially spreading group.

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

0.91–1.22 m (3–4 ft)

Spread at maturity

0.61–0.91 m (2–3 ft)

Light

Sun / Part shade

Moisture

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

Source-reported USDA zones

2–9 · verify subzone and cultivar

Principal seasonal role

Autumn, Summer

Fit it to the site

Moist, draining, moderately fertile soil in sun to partial sun.

Rich moist soil can make it aggressive; reject a tightly packed low-maintenance border.

Keep the care in the decision

Review runners regularly and divide to keep the group inside the intended area.

Origin & safety checks

Eastern North America, North Carolina. 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.