I cut down the Grapey Walter and the Sugar Black Rose tonight. The Grapey Walter barely dropped any pollen and I didnt like its structure once it started flowering. They both went directly in the trash.
First I plucked all the open flowers, then I sifted them over a 120 micron screen onto a piece of parchment paper.
Next I scraped up the pollen with a razor blade. There is more than enough pollen to make plenty of seeds.
The pollen is stored in plastic viles for individual servings. I’ll vacuum seal them in mylar bags with desiccant, then vacuum seal that and place in the freezer.