The growing environment and local conditions of irises

Iris growth environment and conditions

Iris plants grow in temperate environments and are native to China's Shanxi, Anhui, Jiangsu, Zhejiang, Fujian, Hubei, Hunan, Jiangxi, Guangxi, Shaanxi, Gansu, Qinghai, Sichuan, Guizhou, Yunnan, Tibet, Myanmar, and Japan. They grow in areas with altitudes of 800-1800 meters.

Iris growing conditions

Iris is suitable for growing in moist, well-drained, humus-rich, slightly alkaline sticky soil. It is a sun-loving plant and can also tolerate semi-shady environments. It is not resistant to high temperatures and cold weather, and needs to take measures to keep warm in winter. It often grows in swamp soil or shallow water.

Iris growth temperature

Iris prefers a cool environment. The suitable growth temperature is between 13-18 degrees, the highest does not exceed 25 degrees, and the lowest temperature is 5 to 8 degrees. It can only tolerate minus 5 degrees for a short period of time. The optimum temperature for seed germination is 22 degrees.

The growth process of iris

When irises are growing, especially in temperate zones, when there is insufficient sunlight, the greenhouse temperature must be lowered to prevent the flowers from wilting. It is best to keep the temperature between 10 and 13 degrees to ensure plant growth as much as possible. If there are too many leaves at any stage, some can be trimmed to reduce nutrient consumption.

Iris planting time and method

The best time to plant irises is in spring after flowering and in autumn. The plants must receive sufficient light when sowing. When planting irises by sowing, the seeds need to be soaked in water for a day before sowing. After that, the seeds need to be planted in suitable soil. Iris grows very fast. If properly cared for, the seeds will germinate in about ten days, and then true leaves will grow.