Imperial Star Artichoke
Imperial Star Artichoke was bred specifically for annual production in cold climates where artichokes won’t overwinter. Plants produce well-developed artichokes in the first year from seed. Artichokes are deep green and prolific. Perennial in Zone 7 and above.
Latin Name: Cynara scolymus
Site and Soil: Artichokes like 1/2 day to full sun and well-drained soil.
Pollination Requirements: Artichokes are self-fertile.
Hardiness: Artichokes will die back after hard frost. With mulching, they can be grown where temperatures fall to minus 10 F.
Bearing Age: 1 year after planting.
Size at Maturity: 3 ft. in height.
Bloom Time: Late summer
Ripening Time: Fall
Yield: 8-15 Artichokes per plant typically
Pests & Diseases: Artichokes are not bothered by pests or diseases.
USDA Zone: 7
Sunset Western Zone: 4-7,8,9, 11-13,14-24
Sunset Northeast Zone: 34, 38, in other zones grow as annual