The good kind of gladioluses should respond the following international standards:
|Flower diameter||The number of buds in an inflorescence not less than||At once opened flowers not less than||At once coloured buds not less than||Stem length from a surface of soil up to lower flower|
|under 2.5” (6 cm)||15||5||6||max. 16.9” (43 cm)|
|2.5” - 3.5” (6 - 9 cm)||18||6||5||max. 18.1” (46 cm)|
|3.5” - 4.5” (9 - 12 cm)||19||7||5||max. 20” (51 cm)|
|4.5” - 5.5” (12 - 14 cm)||20||8||6||max. 20” (51 cm)|
|5.5” (14 cm) or larger||19||7||5||max. 22” (56 cm)|
It means, that a stem of a kind with code 400 (the large-flowered gladiolus) should consist not less than from 20 buds, from which ones at once should be open not less than 8, and for following 6 buds should be coloured. Stem length thus should be no more than 20”. It is the most minimum requirements, which one there should respond a good gladiolus to. It also should have whenever possible greatest disease resistance and unfavorable weather conditions: for not too good kinds flowers can burn out on the sun and lose the colour or cover by bands and maculae after a rain or even dews. Also the flower should strongly fasten to the stem. To all these requirements should respond the flower brought up from a corm with diameter 1.18” or larger in the open soil, in normal summer.