"Warhol reduced and radicalised his Flowers to such an extent that the banal subject matter was now transformed into a powerful pictorial concept. The directionless format contributed to this: the pictures can be read in all directions; like an abstract painting, top and bottom, left and right, have been revoked" (Nina Zimmer cited in: Exh. Cat., Basel, Kunstmuseum, Andy Warhol: The Early Sixties – Paintings and Drawings 1961-1964, 2011, p. 177).