This plant definitely has to be blanched for several weeks in order to tame its mild bitterness, in the field.
Try to plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Gobbo di Nizzia is thought of as half hardy, so remember to protect this plant from frosts and low temperatures. Gobbo di Nizzia needs a loamy and sandy soil with a ph of 5.6 to 6.6 (weakly acidic soil).By our calculations, you should look at sowing Gobbo di Nizzia about 48 days before your last frost date.
In the fall a shallow trench of fosse (grave) is dug next to each plant which is then still attached to its root. The plant is then tipped over horizontally into it and covered with soil to be left for about a month. The plant tries to grow towards the sun giving the swollen stalk a characteristic curve so therefore the name “gobbo” or hunchback.1
Cardoon
1 https://uprisingorganics.com/vegetables/cardoon/gobbo-di-nizza-1009.html