perennial · design plant record

Agastache foeniculum

Anise hyssop

Upright purple flower spires for an open summer border.

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

0.91–1.52 m (3–5 ft)

Spread at maturity

0.46–0.91 m (1.5–3 ft)

Light

Sun / Part shade

Moisture

Drier soil after establishment / Moist, draining soil

Source-reported USDA zones

4–8 · verify subzone and cultivar

Principal seasonal role

Summer, Autumn

Fit it to the site

A draining border with moderate moisture or seasonal dryness.

Wet winter crowns can fail; scented foliage is not a safety guarantee.

Keep the care in the decision

Allow air movement and manage seedlings where space is limited.

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.