Soaking Gladiolus Before Planting

Preplanting Recommendation

• Gladiolus grows from underground, bulb-like structures referred to as corms. In his book "Growing Flowers for Profit,", Craig Wallin recommends soaking the corms in plain tap water a day before planting.

Planting Recommendations

• Plant gladiolus anytime between early May to the middle of June, advises Ronald C. Smith of North Dakota State University Extension. Plant larger corms at a depth of 6 inches, and space them 6 inches apart. Plant medium-size corms 4 to 5 inches deep, and space them 3 to 4 inches apart. Plant smaller corms at a depth of 3 inches with 2 inches between each.

Cultural Requirements

• Gladioli grow well in areas of full sun to partial shade and in a well-drained, fertile ground. The flowers are hardy in USDA Zones 7 to 10 and are not winter-hardy in areas where the ground freezes. Stake the taller varieties to keep the plants from falling over.