|Average Seed / oz||Seed / 100′ Row||Average Yield / 100′ Row||Days to Harvest|
|Planting Season||Ideal Soil Temp||Sun||Frost Tolerance|
|After Last Frost||50-75°F||Full Sun||Frost Sensitive|
|Sowing Method||Seed Depth||Direct Seed Spacing||Seeds Per Packet|
|Transplant or Direct Seed||1/4″||NA||20|
|Mature Spacing||Days to Sprout||Production Cycle||Seed Viability|
Cardoon is moderately frost hardy and perennial in Zone 7 and warmer. Plant in full sun and well-drained soil.
Start seeds indoors 6 weeks before danger of last frost. Plant seeds 1/4" deep in 6" containers. Transplant after danger of frost with 18-24" between plants. To obtain white, tender leaf stalks, blanch stalks for 4 weeks before harvest by wrapping with newspaper and securing with string.
To encourage overwintering, cut plants in fall to about 8-10 inches above ground and cover with straw or leaves.
Leaf stalks will be ready to harvest in 120-150 days.