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International Standarts

The good kind of gladioluses should respond the following international standards:

Flower diameter The number of buds in an inflorescence at once Stem length from a surface of soil up to lower flower
opened flowers coloured buds
under 2.5” (6 cm) not less than 15 5 6 max. 16.9” (43 cm)
2.5”-3.5” (6 - 9 cm) not less than 18 6 5 max. 18.1” (46 cm)
3.5”-4.5” (9 - 12 cm) not less than 19 7 5 max. 20” (51 cm)
4.5”-5.5” (12 - 14 cm) not less than 20 8 6 max. 20” (51 cm)
5.5” (14 cm) or larger not less than 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.