As long as a flower pair has had the required parents in their line of family, they can breed those flowers. So, if there's a blue rose that had parents that had parents that had parents (ect.) that came from a red rose and an orange rose that came from a white rose, then the blue and orange rose could breed a pink rose. Theoretically, I'm pretty sure you could breed a flower that could breed any flower in it's family.
Oh, no kidding! I don't even keep track right now; that would require a notebook. I am just beginning to put my current hybrids together and hope they breed. So far I have a few more orange pansies and orange cosmos. I get the occasional pink rose. I also got an orange one by accident and wish I knew how that happened! But since I buy flowers from Leaf and also snag some from the Island I have no idea of the family lineages.
I guess I'll use TBT bells for now. I had about a dozen black tulips and now all I have left are two thanks for me being stupid and forgetting that some could wilt and die while I TT'd back to 5:59 three times to pass Gracie's Fashion Checks!
Yes, it's normal. It's not just pink roses either. You can use weird combinations to get hybrids as long as the parents have the required genes. I assume that for pink, the combination has to be a red and a white gene, so as long as the other flowers had them, you ended up getting that combination.
Yeah I can see why orange would, I suppose. Cause sometimes red roses come from the pairs idk it's weird. But I can see why my orange roses pooped a black rose (red in each)