American Cowslip (2009)
American Cowslip is the title of an independent feature film by director Mark David. It revolves around heroin addict, Ethan Inglebrink, whose life is centered on his garden and his group of eccentric friends. American Cowslip is David's third film, following his debut, Sweet Thing (1999), and his second, acclaimed feature, Intoxicating (2003).
More at Wikipedia.