perennial · design plant record

Veronicastrum virginicum

Culver’s root

Tall branching white spires form a back-of-border layer.

Illustrations show a representative form; the detail view is a crop of the same artwork. Use the named factual source and exact cultivar for identification and purchase checks.

Height at maturity

1.22–2.13 m (4–7 ft)

Spread at maturity

0.61–1.22 m (2–4 ft)

Light

Sun

Moisture

Moist, draining soil

Source-reported USDA zones

No USDA range verified

The source subzone list skips zone 5. Confirm a continuous hardiness range locally before using cold-zone matching.

Principal seasonal role

Spring, Summer

Fit it to the site

Moisture-retentive but draining soil in sun.

The source subzone list omits zone 5; no continuous cold range is used for matching.

Keep the care in the decision

Allow a generous root area and support exposed stems if needed.

Origin & safety checks

North America. Confirm local native range and restrictions.

Not a toxicity assessment. Verify the exact plant and any edible part with an appropriate local authority; keep uncertain plants away from ingestion.

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.