It is intended to provide a method of constructing an azalea plant whereby a gene relating to evergreen characteristics can be transferred into a deciduous azalea plant, a gene relating to heat tolerance can be transferred into a heat-intolerant azalea plant, or a gene relating to ever-blooming characteristics can be transferred into a one season blooming azalea plant. A gene relating to evergreen characteristics can be transferred into a deciduous azalea plant by crossing a deciduous azalea plant with an evergreen azalea plant. A gene relating to heat tolerance can be transferred into a heat-intolerant azalea plant by crossing a heat-intolerant azalea plant with a heat-intolerant azalea plant. A gene relating to ever-blooming characteristics can be transferred into a one season blooming azalea plant by crossing a one season blooming gene with an ever-blooming azalea plant.