Plum Tree National Golf Club is an 18-hole public golf course in Harvard, Illinois, built in 1968 and designed by Joe Lee. It sits in the $$$ (premium) price range for golf in Illinois. The season runs Apr 1 to Oct 31. Tee times can be booked 24 days in advance. Guests are welcome.
Details like fees and seasons change, so call the course before you head out.