A vineyard ... in Jezreel - The name Jezreel is applied in Scripture, not merely to the town 1 Kings 18:46, but also to the valley or plain which lies below it, between Mount Gilboa and Little Hermon (2Sa 2:9; 2 Kings 9:10; Hosea 1:5; etc.).
The palace of Ahab at Jezreel was on the eastern side of the city, looking toward the Jordan down the valley above described. It abutted on the town wall 2 Kings 9:30-31. Immediately below it was a dry moat. Beyond, in the valley, either adjoining the moat, or at any rate at no great distance, was the plot of ground belonging to Naboth 2 Kings 9:21.