What are the varieties of Iris seeds? How to raise seedlings scientifically?

Iris is a perennial perennial herbaceous flower, originated in central China and Japan. It is an excellent fresh cut flower and a good material for landscaping. May is the natural flowering period of Iris, which blossoms like a blue butterfly, with high ornamental value, so Iris has become one of the common flowers and plants in family potted plants and landscaping. So what kinds of iris seeds do you have? How to raise seedlings scientifically? Let's get to know it.

What are the varieties of Iris seeds?

The selection of high-quality seed varieties for sowing and raising seedlings is the key to the successful planting of Iris. The variety of Iris is very rich, and there are more than 60 varieties in China alone, such as German Iris, Yellow Iris, Dutch Iris, Yellow Denver Iris, Reticulate Iris and so on. There are also great differences in design and color between different varieties, which are colorful and of great ornamental value.

How to raise seedlings scientifically?

1. Soil requirements

The temperature of the planting area should be warm enough to keep it at about 15-17 ℃ per day, while ensuring exposure to sunlight. In addition, the soil should have the characteristics of good drainage, and adequate base fertilizer should be applied before sowing, so as to promote the rapid growth of Iris, make the plant strong and improve the ability of disease resistance.

2. Sowing method

Choose the more mature seeds, each sowing directly on the prepared sand at an interval of one or two centimeters. When it's done, cover it with a layer of sand, about three to five centimeters. Then slowly put it into the water, wait until there are signs of moisture on the surface of the soil, and then slowly lift it out and put it in a place with suitable light.

3. Propagation and breeding

Generally, seed sowing method and plant division method are often used. The temperature requirement of seed sowing method is relatively strict, and the emergence rate is the highest when the temperature is between 15 and 20 degrees; split-plant propagation is generally carried out after the flower fade in spring or when the growth is not exuberant in autumn. Dig out the iris plant and determine the ramet according to the number of buds on the root-like stem.

4. Seedling maintenance

(1) Light temperature: Iris is a light-loving plant, so the potted plant must be placed in a sunny place. The suitable growth temperature of Iris is 1525 ℃, and the lowest temperature is 5 ℃.

(2) watering and fertilization: Iris also likes to be wet, so there should be more watering in the irrigation of water, pay attention to some varieties are not resistant to stagnant water. Iris is sensitive to fluorine in fertilization, so fluorine-containing fertilizer phosphate fertilizer and triphosphate fertilizer are prohibited. It is suggested that potassium dihydrogen phosphate can be used, thin fertilizer can be applied frequently, once every half a month in the growing season.

(3) weeding: in the nursery where iris is planted, the weeding work should be done well in advance. If there are weeds in the process of planting, they should be pulled out manually in time, and chemical herbicides should not be used to remove weeds as far as possible.

Iris is widely cultivated because of its green leaves, large and strange flowers, which can be arranged in flower beds, used as ground covers, planted by the roadside, and can be used as cut flowers. However, if irises are to grow well and bloom well, the key seedling raising techniques must be skillfully mastered.

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