 95 days. In the mid-Atlantic region, it can be difficult to over-winter artichokes. 'Imperial Star' was the first artichoke bred to produce in one season. Sow indoors 2 months before the last frost date for your area, 1/2" apart and 1/4" deep. Germinate at 70-80 degrees F, then transplant to 2-4" pots at 60-70 degrees F day and 50-60 degrees F night; by two months transplant outdoors, 2-3' apart and protect from frost. Pkt (1g, approx 24 seeds) |