Apple Harvest Festival 2024 Waukesha. Apple harvest festival hosted by retzer nature center. — apple harvest festival returns to retzer nature center in waukesha on saturday, sept.

Waukesha apple harvest festival will be held on september 21st, 2024. The friends of retzer nature center’s 33 rd annual apple harvest festival returns to celebrate waukesha’s beautiful autumn season on saturday, september 21 from 9 a.m.