I don't know if this will help, but. I have been hybridizing fuchsias now for well over 40 years, and tried various methods like you to mark the crosses. In the end I found that ordinary knitting wool was the answer. There were, and still are, family, friends and neighbours who knit, and they all seem to have wool left over. Very soon I had dozens of different colours which I use along with a note book to keep a reference to my crosses. I agree with you, it's a exciting thing to do. I still get a kick waiting for those plants to bloom, and what a thrill when you get something special. Keep going.
John.
"Samantha's Smile" 2015
