Easy to grow!. Artichokes can be produced from seeds or from perennials. Perennials produce the edible flower only during the second and subsequent year, while varieties from seeds can be annual. Commercial culture is limited to warm areas hardiness zone 7 and above. Growing Artichokes require good soil, regular watering and feeding plus frost protection in winter. Rooted suckers can be planted each year so that mature specimens can be disposed of after a few years, as each individual plant only lives a few years. The peak season for artichoke harvesting is the spring, but they continue to be harvested throughout the summer, with another peak period in mid autumn.