Heirloom - 1863
For a century and a half this choke has been the standard variety in the west. It produces an abundance of “chokes” over a number of years given the right environmental factors. Plants are dark green, of medium height, and buds are an elongated oval with somewhat spiny scales. 25 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.