| Olivier Legros ( B ) |
| Osada Ken ( J ) |
| Otokar Cmiral ( CZ ) |
| P. Howse ( USA ) |
| Patty Drown ( USA ) |
| Paul Veenvliet / SLO |
| Pawel Tomczak ( PL ) |
| Peter Bastion ( GB ) |
| Peter Dieckmann ( D ) |
| Peterson ( GB ) |
| Ploeger ( NL ) |
| Polly Bishop ( USA ) |
| Radovan Konop ( CS ) |
| Reia Tanaka ( J ) |
| Robert Klaus ( A ) |
| Robert Roth ( SK ) |
| Rock Garden Nursery ( A ) |
| Roger Bayens ( B ) |
| Roger Springael ( B ) |
| Roger Wynnants ( B ) |
| Rolf Volbon ( D ) |
| Rolland Lumaret ( F ) |
| Sandy Mac Pherson ( USA ) |
| Selwijn Durez ( GB ) |
| Shirley Rempel ( USA ) |
| Simon ( D ) |
| Slabber ( NL ) |
| Squaw Mountain Gardens (USA) |
| Stanislav Šašek ( CZ ) |
| Staudengärtn. Dressel ( D ) |
| Staudengärtn. Probst ( D ) |
| Sue Thomas (Rowe) ( GB ) |
| Susanne Voss-Grosch ( D ) |
| Terry Kemp ( GB ) |
| Theo Germann ( D ) |
| Thomas Kustermann ( D ) |
| Tom E. Lewis ( GB ) |
| Ute Böhler ( D ) |
| Uwe Mysliwietz ( D ) |
| Valery Mochalkin ( RUS ) |
| Van Delft ( NL ) |
| VEG Zierfurt Bornimer Stauden ( DDR ) |
| Volkmar Schara ( D ) |
| W. Kolaga ( USA ) |
| W. Ronald ( GB ) |
| Walter Marx ( USA ) |
| Walter Terryn ( B ) |
| Wild Ginger Farm (USA) |
| William Newhard ( USA ) |
| Wolfgang Bleicher ( D ) |
