2K1B ~ I picked up a copy of THE ZINNIA BREEDER'S HANDBOOK by Tiffany Jones on Amazon. Also a couple others for a variety of other flowers, if you might be interested.
PLANT BREEDING FOR THE HOME GARDENER by Joseph Tychonievich
BREEDING NEW PLANTS AND FLOWERS by Charles Webb
Honestly, I don't know how far I will get with all of this, though I have successfully bred irises it was more just to see if I could do it. I did not produce anything worth introducing, but they were pretty,
Now, due to advancing years, I am not sure how much more I will be able to do. I am hoping to grow a productive vegetable garden this year and keep the weeds out of the landscaped areas and the flower beds.🌼