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Growing Gladioli
(Page 2 of 3)

This article was provided by Jennifer Moore
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Different cultivars and hybrids available to choose from comprise of many characteristics. Some are dwarf in height and flower size, and bloom late, while others are regular sized and bloom early- or mid-season. The colours, heights and bloom times vary a great deal, thus various types of glads can be seen growing throughout the season.

When purchasing gladioli corms, choose firm, plump and unblemished ones. The ideal corm should be 2.5 centimeters or more in diameter. They can be planted in the garden two weeks before the last expected frost, thus their green shoots appearing when the weather has warmed.

Many varieties are heat tolerant, disease resistant and will grow successfully in greenhouses. Diseases and insect damage can be seen by yellow spotted leaves, stunted growth and flowers that open irregularly and fade quickly. Some fungicides/insecticides work with above-ground plant parts, and removal of diseased corms being the only solution for under-ground problems. Rotating planting areas helps with the prevention of disease control.

Gladioli look best when planted in drifts of odd numbers in the garden. If planting strictly for cut flowers, then straight rows are the easiest to work with. The best sites for planting gladioli corms are in full sun, with rich, well-drained soil that has a 5.5-7.0 PH level. They will tolerate part-shade but will not be as compact or as straight in growth. Plant corms with the tips facing upwards, 3-6 inches deep, with the smaller corm planted more shallow. If a heavy clay-like soil site is chosen, then it too should be planted more shallow. If the corms are large and the planting site is sandy, then the corms should be planted deeper.

Staking the plant as it grows as advisable, as strong gusts of wind will likely bend the stems over. An alternative to this is hilling up the stem with more soil when it is 10-12 inches tall.

The above article and any related images are the works of the author and may not be reproduced in part or whole without prior written consent.

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