| Hostaname | RG | SZ | Leaf color | P | F | Origin |
| H. 'X-rated' R. Simmering 2001 | R | w,gre | 'X-ray' sport | |||
| H. 'X-ray' R. Simmering 2000 | R | grw,gre | 'Gold Edger' sport | |||
| H. 'Xanadu' Alex Malloy 2000 | R | w,blgre | PI | 'Island Charm' sport | ||
| H. 'Xanadu Paisley' V. & B. Skaggs 2000 | R | M | str,lgr,mot,dgr | 'August Moon' sport | ||
| H. 'Xela' Jim Hartmann 2003 | R | gr,grye | 'August Moon' sport | |||
| H. 'Xerxes' Alex Malloy 2002 | R | S | str,dgr,w | 'Crepe Suzette' hybrid | ||
| H. 'Xmas' J. Kerr 2000 | R | M | gr,cre | 'Moon Glow' sport |