perennial · design plant record

Caltha palustris

Marsh marigold

Yellow spring flowers mark a wet margin.

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

0.3–0.61 m (1–2 ft)

Spread at maturity

0.3–0.46 m (1–1.5 ft)

Light

Sun / Part shade

Moisture

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

Source-reported USDA zones

3–7 · verify subzone and cultivar

Principal seasonal role

Spring

Fit it to the site

Damp to wet ground rather than a dry border.

Do not confuse it with edible plants; ingestion can be harmful.

Keep the care in the decision

Keep the root zone damp and allow a quieter summer phase.

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.