Floret Size Classification
Gladioli are classified into five categories to indicate size. In the code, the first number indicates size. The diameter of the flower is measured as it grows normally without being flattened out in any way. This measurement is made on the bottom florets of the spike, which are generally slightly larger than those farther up.
| Code | Group | Flower Size |
|---|---|---|
| 100 | Miniature | Flower diameter less 6 cm (2.5”) |
| 200 | Small | Flower diameter is 6 - 9 cm (2.5” – 3.5”) |
| 300 | Medium | Flower diameter is 9 - 11,5 (12) cm (3.5”- 4.5”) |
| 400 | Large | Flower diameter is 11,5 (12) - 14 cm (4.5” – 5.5”) |
| 500 | Giant | Flower diameter is 14 cm (5.5”) or larger |
The number 499, for example, indicates a large-flowered gladiolus.