In the winter of 2019/2020 I scattered a bunch of Osage Orange seeds from fruits I had picked up from the ground in Brazos Bend State Park and in nearby Lake Jackson during the summer of 2019. By early June of 2020 they sprouted into a thicket of seedlings.
Osage Orange leaf detail from June 2020
One of them is taller than the rest, and several already have thorns.