ente a . ▁Se eds ▁may ▁be ▁sold ▁as ▁mi xt ures . ▁ ▁The ▁following ▁stra ins ▁have ▁gained ▁the ▁Royal ▁H ort icult ural ▁Society ' s ▁Award ▁of ▁Garden ▁Mer it ▁( conf ir med ▁ 2 0 1 7 ): ▁ ▁C . ▁arg ente a ▁var . ▁crist ata ▁( Pl um osa ▁Group ) ▁' Sm art ▁Look ▁Red ' ▁ ▁C . ▁arg ente a ▁var . ▁crist ata ▁( Pl um osa ▁Group ) ▁' F resh ▁Look ▁Orange ' ▁( F resh ▁Look ▁Group ) ▁ ▁C . ▁arg ente a ▁var . ▁crist ata ▁( Pl um osa ▁Group ) ▁' G low ▁Red ' ▁C . ▁arg ente a ▁var . ▁crist ata ▁( Pl um osa ▁Group ) ▁' Cent ury ▁Rose ' ▁( Cent ury ▁Group ) ▁C . ▁arg ente a ▁var . ▁crist ata ▁( Sp ic ata ▁Group ) ▁' F lam ingo ▁Fe ather ' ▁ ▁Tax onom ic ▁issues ▁ ▁H ort icult ural ▁usage ▁may ▁be ▁very ▁confusing . ▁For ▁instance ▁Cel os ia ▁crist ata ▁may ▁be ▁listed ▁as ▁a ▁separate ▁species , ▁or ▁a ▁variety ▁of ▁C .   arg ente a . ▁Other ▁names ▁for ▁C .   arg ente a ▁var . ▁pl um osa ▁include ▁Cel os ia ▁arg enta ▁var . ▁p yr im id alis ▁and ▁C .   sp ic ata . ▁ ▁Other ▁class ifications ▁consider ▁three ▁variants : ▁C . ▁arg ente a ▁var