The entire cross is coded as follows:
[('Marmalade Skies' x 'Baby Love') x 'Julia Child'] x <|'Thrive!' x {'Halo Today' x ['Geisha' x ('Tobo' x 'Singing' in the Rain')]}| x 'Double Knock Out'®>.
Please note that the seed parent coded above is pink, while the pollen parent is blue.
Of course since 'Thrive!' has 'Marmalade Skies' X 'Baby Love' in it's ancestry, the seedlings used in the cross have some recent ancestors in common.
The reason for this post is to underline the importance of "finding" good crosses. I have made plenty of crosses that I thought would produce good seedlings, only to throw out the entire batch. So the process really is one of trial and error. I suppose it is part of what makes rose breeding so fun!
Each of the following seedlings came from the cross noted above.
There is a clear family resemblance among these different seedlings. The family includes a few that are pink and some that have only 5 petals, but these five have the traits that I am looking for. They all seem floriferous and are resistant to powdery mildew. The next step will be to test them against black spot and other diseases outside. The least vigorous of these may be discarded before the end of the year.