Hi,
I am living in UK and I bought a Hybiscus plant, which flowering yellow and pink separately in one plant.
We noted , some flowers with dual colours in the same flower. I have attached one of the flower photo. We noted some flowers with different extent colour combination,
I have discussed about this , with my friend who is botanist and environmental scientist. He cannot give any explanation.
Every time when a dual colour flower comes , I video the whole plant, for my records.
Looking forward to hear from you.