I planted a Blackberry Bush in April 2011.
The Blackberry Bush was from Home Depot.
This is definatly showing signs of doing a little better than before and establishing itself. I think the overcrowding got to it when the weeds grew up but now it should be a little better suited for next spring.
As of August 2011 its not done much other than run away and root in the corner. It has some new shoots poking out but nothing too exciting. I think its waiting for a cooler growing season so maybe Sept/October it will go for it.