A generally used method to reproduce Blue Roses in ACNH from lidakun's blog

A generally used method to Animal Crossing Bells  reproduce Blue Roses in ACNH includes breeding a Purple and Orange Rose - each already hybrid colours - and the use of  in their hybrid Red offsprings to reproduce for Blue, however only 1/2 of the hybrid Reds from a Purple and Orange could have the essential genes to provide a Blue.

Although this is all enormously complicated, the coolest information is that once players have their first Blue Rose, they could develop more by means of maintaining the hybrid Red Roses close to each different, and with the aid of shifting the Blue Rose to a square in which it isn’t touching every other flora.

Because Blue Roses in Animal Crossing: New Horizons have only one genetic make-up, they will constantly have other Blue Roses when watered, unlike other vegetation which can produce one of Buy Animal Crossing Bells  a kind hues when by themselves due to their variable genetic makeups.