best bet is to research it, i would think you would have to have 2 ruderelas in order to get 100% ruderelis offspring. if you have one photo one auto i would thnk the offsring would be 1/2 and 1/2 but i dont know for sure. im sure Albert here probabally dosent know either with 100% certainty. if he does please elaborate on why a female phot and male auto make 100% auto.