Konasdad. I am sure that the bees smell the chemicals in the leaves of the hyssop, probably quite similar to the flowers. I see that too with my bees, yep, they are disappointed.
Glad to hear about your borage. Incredibly beautiful plant eh?
About the seed gathering. You will watch the flowers on the plant. When the flowers drop off, there forms a pod. Observe the growth of the flower pod. In some time (I am not sure the timeframe), you will undoubtedly see the little green seeds growing, open the pod a little bit and observe it, just for fun. This is your learning tool.
When the seeds are ripe, of course they will be brown, but they fall so quickly to the ground when they are brown, it is hard to catch them in the nick of time. The birds will get them first in many cases.
When the seeds are ready, I pick them when they are still pretty much green. You will see the pod open, the seeds will be very, very visible. They will turn brown very very quickly, sometimes even overnight, so it is a fine line. When you see the pod open up and the seeds are visible, then is the time to pick off the pod. Leave them for a couple of days in a warm spot, you will see the seeds turn brown, almost before your very eyes. These seeds then can be replanted immediately. They will germinate very quickly, within a week, if they have moist conditions. That will be your job, to keep them "reasonably" moist. By reasonably, I mean let the dew from nature do its job (do you get dew? We get lots of dew, but we are in a very moist climate). Or just when you think about it, spray some water on them. Again, do watch out for the birds. Quite often I will just put a whisper of some dirt over them, to hide them a little from the birds, but they will germinate without being covered.
Hope that will help you with your seed saving. When is your frost kill date? I know that there is no purpose in sowing borage seed here much past the middle of August. I don't think the daylight hours are long enough for proper nectar flow, so I don't bother after that time. If you have any more questions, please put them out there, I will answer what I may have forgotten to write about. Have the wonderful day, great life and a beautiful day to boot. Cindi