I'm unclear what actual species it is
Google "Carbonero tree". You'll find it instantly.
But let's wait for Clicio, he knows the species.
I have some calliandras here in Brazil, including the white cultivar. But they are all over Central and South America, with many different leaves and names (such as "carbonero").
Plenty of water, plenty of light, protect it from harsh direct sun, likes some breeze. Don't water the flowers.
Don't move it around, find a good place and leave it there.
Goid luck!