Quite stunning tropical hibiscus. Do not know the variety.

Very pretty. Many possibilities could explain the leaves though. Tag the branch and see if the coloring persists next year.

Looks like pride of hankins

What are you fertilizing with? Hibiscus requires a middling amount of N, low amounts of P, and scads of K. If your plant is containerized, I can't think of even a made-up reason to use a "bloom booster" fertilizer. Ideally, the fertilizer you use should have about 10x as much N as P, and 1.5-2x as much K as N.

Hibiscus is also genetically imbued with a very vigorous root system, so the plant should be repotted every spring. There is a big difference between repotting and potting up. Potting up ensures the limitations associated with root congestion dog the plant forever, or until a human actually gets his hands into the roots and corrects the problems. Repotting completely eliminates the limitations associated with root congestion. If you can lift the root/soil mass from the pot intact come spring, it would be best to repot it ...... and you'll find it to be that root bound, and then some, every spring ....... unless the soil is inappropriate and the plant is constantly regenerating roots to replace those lost to soggy conditions.

Al

This hibiscus doesnt care. It will not bloom on new wood. Its an old variety. When i bought it from the nursery it was 20 years old (just in the business alone). Every year i root prune because it is definitely prolific in that department. Fertilizer has always been given. But 4 years ago now i stopped pruning it to stay compact. Stem cuttings readily root and flower since theyre on some sort of older wood. Strange but beautiful. This winter it caught black aphids... darn nasty things. Had to trim it back. Nbd. Thick truck, prolific back budding. Neat tree for sure.

This hibiscus doesnt care. It cares a lot, in that how it's cared for makes a big difference in how it responds. It will not bloom on new wood.All hibs bloom from new wood. Its an old
variety. When i bought it from the nursery it was 20 years old (just in
the business alone). Every year i root prune because it is definitely
prolific in that department. Fertilizer has always been given. Again, what fertilizer(s) you use makes a very big difference. I use Foliage-Pro 9-3-6 with an equal measure of ProTeKt 0-0-3 for the added K and silicon. But 4
years ago now i stopped pruning it to stay compact. Since all hibs bloom from new wood, not keeping the plant compact robs you of the enjoyment you get from an abundance of blooms. Regular pruning/pinching means more branches, and the plant blooms on new growth at the ends of branches. From this, more branches = more potential for an abundance of blooms. Stem cuttings
readily root and flower since they're on some sort of older wood. Not the reason - likely it's because new cuttings don't abort blooms due to root congestion. When I mentioned the plant likes being repotted annually, I meant a full repot - bare rooting/ root pruning/ correcting all problem roots in spring. You can still repot, BTW. Late May to early June is the best time to repot them in the UP.

Al