Typically artichokes are perennials in zone 7 and above but his variety was bred specially for northern climates to produce well developed buds in the first season. A vernalization is required in the north for first year buds set the seedlings out for 10 days at temperatures of 45-50 degrees.This tricks them into thinking they have gone through a winter and they will produce like a 2 year old plant. The flavor of fresh artichokes is superior to anything you will find in the store. Sow seeds in the fall if you live above a zone 7 area. 12 seeds
Germination- 10-18 days
Indoors - 8-12 weeks before last frost 1/4” deep in 4” pots with soil temperatures 65-75 degrees. Before transplanting outside, a vernalization is required for growing in the north (zone 6 and below) to induce first year bud formation. Set the seedlings out for 10 days at temperatures of 45-50 degrees. Sow seeds in the fall if you live in zone 7 and above. Transplant at 3-4 feet apart ,after danger of frost has passed, into rows amended with lots of compost or aged manure
Harvest - just below the bud when they are firm and still closed
Tips - Artichokes are heavy feeders so fertilize well from the early stages of growth.