Considered a delicacy globe artichokes are easy to grow and as a perennial once planted will give a number of years worth of cropping.
Simply plant rooted suckers in the spring then remove the flower heads as they form in the first year then allow them to form more fully in the second year and pick them off just before the fleshy scales open in June. New growth will then appear in August. The thick tough old stems can then be cut back and composted. Most growth happens in winter and spring when dry soil is not a problem so maintenance is relatively low. That said they do appreciate a thick annual mulching and some protection from harsher winter conditions.
Globe artichokes can be grown in places which do not support strong growth later in the year. Despite being perennials the plants will not last forever and an annual replanting of the crop is good practice to ensure a continuous supply.
Frequently planted in both ornamental borders and vegetable plots Globe artichokes will grow to 1.5m x 1m (5ft x 3.25ft), make big clumps of thistle-like silvery leaves. They make good architectural plants as well as having those edible flowers. Ideally for cropping they are planted 60cm (2ft) apart with 75cm (2.5ft) between rows. On average one plant will produce 12 edible heads.