| Oasis F1 |
|
South europe: spring; north europe: spring, early summer, late autumn |
North europe | south europe |
| Octave F1 |
|
Summer |
North europe |
| Olivia F1 |
|
Winter gh in nl, acryl protected crops in spring |
|
| Opimes |
|
Spring |
North europe |
| Opus |
|
South europe: winter and spring | north europe: spring, summer and autumn |
South europe | north europe |
| Orcades |
|
South europe: autumn, winter, spring; north europe: summer |
South europe | north europe |
| Orpheon F1 |
|
Spring, early summer |
North europe |