Mangrove Planters for Coastal Defence | REEF DESIGN LAB
I don't know if this counts as a bonsai, but here's a mangrove tree that I've been growing mostly indoors since 2010. It's a bit taller than the length of my elbow
Riparium Planter Grand 2-pack – Aqua Verdi
Flagler Mangrove Planter (Palm Beach County) | Florida Living Shorelines
If you cut down a mangrove tree, you must replace it with ten seeds” — Planet Indonesia