If you plant more than one seed of a cross you end up with siblings or some call them sisters, normally one will out preform the others. In rare case's a hybridizer will register two from the same cross, normally not in same year but wait a year to register the second one. Of course about 95% of all seedlings will never make it to registration.
These are Tets





These are Dips






Here are two that was registered in the same year (2011)
LILLIAN'S VAPOR TRAIL

LILLIAN'S WHITE LIES

Very cool, Fred! The variety of pattern and colors is striking!

My best pod produced these siblings many years ago. Needless to say, it was a good cross. EMERALD STARBURST X ROSE F KENNEDY

Fred and Steve - Those must have been great crosses to get so many sibs with great looking patterns and pleasing color combos!

Fred and Steve: I would gladly accept all your rejects!!

Mayo

! Absolutely gorgeous seedlings, and I'm so happy to say that I proudly own all three: LILLIAN'S VAPOR TRAIL, LILLIAN'S WHITE LIES, and THE LADY OF SHALOTT! And Fred, that HB06-17 looks absolutely perfect -- and perfectly gorgeous!!!

Fred, can you enlighten me on how you do your seedling numbers? I think that HB means "Hybridizing Bed," and does the "06" mean the 6th seedling you flagged in that year? And the one that really confuses me is the "17" year designation, because I assume they all actually bloomed the first time in 2016. So what meaning does "17" designate? I need to educate myself on this because I don't really know how to number my seedlings. I've been marking the year that I actually originated and planted the seeds, but should I be doing something else?

Nothing big time but I got these from a cross of MANDALAY MUSIC x MICHAEL MILLER







[lightbox]2017-02-11/hillbilly/35cba2[/lightbox

Messed that up,2 more fro same cross

Love them all Steve, I can't grow RFK here and EMERALD STARBURST barely survives, both are just too dormant for my part of the Gulf Coast.

Four nice sibs Boyd, all of us use different plants and get very different results.

Fred, can you enlighten me on how you do your seedling numbers? I think that HB means "Hybridizing Bed," and does the "06" mean the 6th seedling you flagged in that year? And the one that really confuses me is the "17" Betty you are correct about HB and the 06, the last two numbers are the first year they be in the HB area and I start the evaluation process. If I select a seedling in 2016 the last two numbers will be 17(HB06-17). There will never be another seedling seedling with that number.

That makes a lot of sense - thanks Fred!

These are DIPLOIDS - STELLAR DOUBLE ROSE X SEEDLING-trying to get good doubles here in zone 5b

Great doubles David.