The pomegranate cave is also translated as the pomegranate tree.
The mention of Saul sitting under a tree could be an indication that he was continuing his normal duties as king (see 1 Samuel 22:6; Judges 4:5),1 an allusion to his role as leader.2 Instead of making plans to fight the Philistines, he is waiting for an oracle from God.3
2 Saul was staying in the outskirts of Gibeah in the pomegranate cave at Migron. The people who were with him were about six hundred men,