Oak trees do not produce acorns until they are fifty years of age or older. Posted on June 13, 2013November 10, 2013 by admin Oak trees do not produce acorns until they are fifty years of age or older. VN:F [1.9.22_1171]please wait...Rating: 0.0/5 (0 votes cast)VN:F [1.9.22_1171]Rating: 0 (from 0 votes)