Looking to plant a fast growing tree in my front yard that will create shade and has bright flowers. Any suggestions? (Zone 11a) I am using snow bushes for my privacy bush, el toro grass and I was thinking about putting an ornamental tree in the mix.  I am interested in finding out what is out there.  My wish list would be either yellow flowers or any other bright color, has to be a non invasive root because it's in my front yard, grows quick and provides shade.  The area I will be putting the tree in gets full sun, baking sun.  Any suggestions? 