One of the smaller seedlings has branched spontaneously.
Here is the right seedling in the same pot. Comparing these photos you can see that while it is not a huge plant it did in fact grow a lot.
This is a picture of the largest seedling in spring. I still have the makeshift support in place because the stem is a bit thin on the lower side and it needs a bit of support to keep it from keeling over. With the impressive growth this year it needs the support even more.
Now I am really hoping for flower next year. I guess I should really pay more attention to the fertiliser regime next year. The thing is that it is nigh impossible to get a good bloom booster fertiliser here so I might have to get it online. I am so curious whether all three are the Polynesian sunset variety or whether one of the seedlings is from the generic rubra seeds.