I’ve got a few 4th of July hips and a number of Graham Thomas hips available, if people want them. All were open pollinated. Graham Thomas is a prolific bloomer and hip setter. Each hip has a good number of seeds and it seems that GT germinates well. Can’t tell you about 4th of July except that I remember hips having a good number of seeds.
Better contact me by e-mail so I can give them away on a first come, first served basis.