Do they ever throw a different color?

I had all these last year have not bought any new ones this is the usual flower

Today I have this one I really like it but maybe won't see it again

I've definitely had hibiscus give me different colored flowers depending on whether it's warm or cold out. Some cultivars seem to vary a lot and others are very consistent in their coloring. I've also noticed differences in how some cultivars appear for people in humid climates like TX and FL vs a dry climate like we have here in CA.