While Wharton knows that time is on his side, he wants to play for the Three Lions as soon as possible.
With UEFA allowing 26 players in squads, youngsters such as Wharton, his Palace teammate Eberechi Eze, and Manchester United teenager Kobbie Mainoo may all go.
Eze and Wharton were outstanding against United in a 4-0 win for Palace on Monday.
While Mainoo did play the game, he did not put in his best display of the season.
Wharton said: It's obviously great to be mentioned within that.
If it happens, it happens. It would be great. But at the same time, I'm not expecting anything. I'm just enjoying my football at Palace.
We've still got two games left before the Euros. I'm looking at them first, and then if I get the call-up, fantastic. If not, recover in the summer and go again next year."