Professional Planting Bulbs by Iris USA

The method of preventing cold by burying the soil: The full burial method on the ground involves covering the soil to prevent cold without the need to dig trenches. The thickness of the soil cover depends on the local absolute minimum temperature and the cold resistance of the plant species. Generally, when the winter temperature drops to -15°C, the soil cover should be around 20 cm thick, while at -17°C, it should be 25 cm thick. The colder the temperature, the thicker the soil cover should be. Certain varieties, such as Kyoho and white banana, which are highly cold resistant, can have a slightly thinner cover.

Iris, a perennial bulbous plant, is renowned for its rich colors and is often referred to as the goddess of the rainbow. With flowers resembling butterflies, when in full bloom, they create a spectacle akin to colorful butterflies dancing amidst the green foliage. Iris has a long flowering period, with blooms lasting for 3 months annually and reappearing each year.

These plants are cold-resistant, easy to cultivate, and straightforward to plant.

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