It competes aggressively with other vegetation for drinking water, and typically wins, accounting for its prevalence in several arid destinations in the southwest. 2 plants will fill in that place soon after a few decades. Blackberries are almost just like a weed if given superior soil and lots of h2o. http://sergiogzlxd.bloguetechno.com/How-Much-You-Need-To-Expect-You-ll-Pay-For-A-Good-Pot-Seeds-Arizona-22181114