Physical Graffiti is a hybrid Dragon Fruit variety that produces a pink fruit with light purple sweet flesh. These fruits are large averaging .75 to 1.5 pounds. This variety is certainly worthy of attention by home owners for its exceptional taste. In fact, it is among the favorites due to its taste and flavor. If you’re looking for great tasting fruit you must consider this variety. On the down side, this variety is non-self-fertile but pollinates very well with Hylocereus polyrhizus hybrids. What this means is it will require pollen from another variety. The flowers are huge nocturnal blooms that are over 14 inches across and blooms all summer long. It is tops on the list when it comes to flower production. This variety has typical Hylocereus undatus three sided growth that is very aggressive. Additional internet research has stated that 1S and Physical Graffiti are the same. The 1S is seedling created by Paul Thomson and mentioned in his book Pitahaya. The 1S is a cross between Rixford, a purple fleshed variety and Niezel, a white fleshed variety. This variety was acquired from a tropical nursery in Louisiana.