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Cynara cardunculus (Cardoon): Architectural Edible with Dramatic Foliage

Cardoon (Cynara cardunculus) is a bold, architectural perennial (often grown as an annual) with huge, prickly, gray-green arching leaves and a statuesque, vase-shaped frame up to 5 feet tall and 4 feet wide. In midsummer, it tops out with round, purple, thistle-like flowers. A close cousin of the artichoke, it's native to sunny, well-drained Mediterranean slopes.

Ornamental & Edible Uses

  • Flowers: Magnificent for cutting and drying.
  • Edible: Blanched leaf stalks and midribs are tasty; unopened flower heads can be eaten like artichokes.
  • Hardiness: Overwinters in Zone 7 with protection.

Culture & Propagation

  • Site: Sheltered, full sun, fertile well-drained soil.
  • Propagation: From seed (flowers first year if started early); divide in spring or use root cuttings in winter.

Potential Problems

Gray mold, root rot, slugs, aphids.

Quick Reference

Height3–6 ft.
Spread1–3 ft.
LightFull Sun
MoistureDry
MaintenanceModerate
FeaturesShowy Flowers, Showy Foliage
Bloom TimeEarly Summer to Fall
Flower ColorPurple
UsesBeds, Borders, Containers, Cut/Dried Flowers, Specimen, Edible
StyleCottage Garden
TypePerennial

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