What is the best month to plant irises?

When to plant irises

Iris is generally propagated by sowing, and the best time is August to September each year. This is because it is a perennial plant. After being planted in autumn, it will grow roots in winter and will bloom in the spring of the following year.

Planting time in the north and south: There is not much difference in the planting time of irises in the north and south. As long as the temperature is stable, they can be planted in spring or autumn.

Greenhouse planting time: Greenhouse irises can be planted all year round, just keep the temperature between 16-18℃.

Iris Origin and Planting Month

Iris is native to China, and common production areas include Shanxi, Hubei, Jiangsu, Jiangxi, Hunan, Anhui, Guangxi and other provinces.

Hunan Iris

Hunan iris can be planted in autumn, with a growth cycle ranging from 50 to 80 days. The plant likes high temperatures and is commonly cultivated in gardens across the country.

Jiangsu Iris

Jiangsu is the main production area of ​​irises. The plant blooms in May. The plant has thick rhizomes, yellow-white filaments, and likes water and humidity.

Iris varieties and planting months

There are many varieties of irises, the most common ones include German irises, yellow irises, Dutch irises, yellow Denver irises, and net-veined irises.

German Iris

German iris can be planted in August and September, and blooms in April and May. The rhizome of the plant is thick and fleshy, the flowers are mostly lavender in color, and it grows healthily.

Dutch Iris

The flowering period of Dutch iris is in late April and lasts for about 10-15 days. The plant prefers a cool climate environment and has a high ornamental value.