How do I register my seed bank?

Unless it is in the program, you can't select it. If you want new things added, do as m0use said, contact Grow Diaries direct.

Though the breeder needs to upload their list of strains to GD in order for you to link it to a specific breeder. If it’s not on the list you may have to type out the name and load it as a custom seed.

What organic G said. But you also have to go to “Edit Diary” not “Edit week”.

When you select your strain you have the choice from which seedbank