BOTTLE BRUSH TREE
RED BRUSHES ARE FALLING OFF TREE -- WHY??
Certified GKH Gardening Expert
This can be due to many things, unfortunately. Being too wet, or too dry for too long can cause this, as well as underfertilization. If they have been on while, then they could be at the end of their life cycle. Can you include a photo? This can help me to better see what is going on.