If you are growing artichoke plants, one of the vital things you need to know is the right timing when to harvest the artichoke buds. Artichokes like frost-free winters and cool, foggy summers the best. Artichokes like frost-free winters and cool, foggy summers the best. A leathery bract surrounds a purple-blue flower. If you harvest too early, the buds may not be … Types of Artichokes A leathery bract surrounds a purple-blue flower. When and how to harvest artichokes in the home garden depends on the type you are growing. Most of the nation’s artichokes are grown in the coastal California region because conditions are most favorable. When and how to harvest artichokes in the home garden depends on the type you are growing. Types of Artichokes Artichoke is a nutritious and versatile vegetable that you can use in many dishes. Most of the nation’s artichokes are grown in the coastal California region because conditions are most favorable.