Here are a few photos of my acacia. Acacia trees can grow up to 20 feet tall. I planted mine because it is drought tolerant, will cover the back fence (and my neighbor) and they bloom! Beautiful giant yellow flowers.
I have heavy clay, alkaline soil and no water. So I was looking for something that fit into my little microclimate. Along the back fence of my yard, I am trying to go California native, or at least all drought and Acacia fit the bill. AND it blooms in February!