growdiaries.com/faq
Section 5...
5. How do I add my own brand to the dropdown list?
Please email us info@growdiaries.com/ and we will assist you with adding your product to GrowDiaries. Usually, before adding a seedbank, we ask to initiate 1-2 Diaries on our website with their genetics.
Or
growdiaries.com/contact
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.