Thank you everyone for you nice comments.
I couldn't find the exact same image, but did find pics
of the plant from May 2022.
Here's one pic from the slideshow (see below)
Click>
Slideshow
This hibiscus doesn't get any special attention (but will feed it today
while it's raining), and it had a bad case of whitefly several years ago,
but doing amazingly well since without treatment.
I will tell it how much you enjoyed it's blooms, and bet it will
respond with many more.