perennial · design plant record

Coreopsis verticillata

Threadleaf coreopsis

Fine leaves and yellow flowers create a light-textured middle layer.

NC State currently accepts Anacis verticillata for this plant; Coreopsis verticillata remains the familiar synonym.

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

0.76–0.91 m (2.5–3 ft)

Spread at maturity

0.43–0.91 m (1.4–3 ft)

Light

Sun / Part shade

Moisture

Drier soil after establishment / Moist, draining soil

Source-reported USDA zones

3–9 · verify subzone and cultivar

Principal seasonal role

Spring, Summer

Fit it to the site

Lean sandy or rocky soil with good drainage.

Rich or overly moist soil encourages flopping. Source prose gives up to 3 ft spread rather than the smaller dimension field; reserve the larger envelope.

Keep the care in the decision

Inspect expanding rhizomes and divide when the group crowds its neighbours.

Origin & safety checks

Eastern Canada and the United States south to Georgia. 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.