What varieties of iris seeds are there, and how do you scientifically grow seedlings?
Iris is a perennial herbaceous flower, native to central China and Japan. It is an excellent cut flower and also a good material for landscaping. May is the natural flowering period for iris; when it blooms, it opens like a blue butterfly and has high ornamental value, so iris has now become one of the common flowering plants for household potted cultivation and landscaping. So what varieties of iris seeds are there? How do you scientifically grow seedlings? Let's find out together.
What varieties of iris seeds are there?
Choosing high-quality seed varieties for sowing and raising seedlings is the key to successful iris cultivation. Iris varieties are very abundant; in our country alone there are more than 60 varieties. The more common ones include German iris, yellow iris, Dutch iris, yellow Denver iris, netted iris, and so on. Different varieties also differ greatly in flower color, brilliantly colorful and highly ornamental.
How do you scientifically grow seedlings?
1. Soil requirements
The temperature in the planting area needs to be suitably warm, and can usually be maintained at around 15-17°C, while also ensuring access to sunlight. In addition, the soil must have characteristics such as good drainage. Before sowing, sufficient base fertilizer should be applied, so as to promote rapid iris growth, make the plants robust, and improve disease resistance.
2. Sowing method
Select the relatively mature seeds and sow them directly on the prepared sandy soil at an interval of one or two cm per seed. After that, cover with a layer of sand, about three to five cm is enough. Then slowly place it into clean water, and when the soil surface shows signs of moisture, slowly lift it out and place it in a spot with suitable light.
3. Propagation and seedling raising
Generally, the seed sowing method and the division method are mostly used. The seed sowing method has relatively strict temperature requirements, and the germination rate is highest generally at between 15-20 degrees; division propagation is generally carried out after the flowers fade in spring or in autumn when growth is not vigorous. Dig out the iris plant and decide the divisions according to the number of buds on the tuberous stem.
4. Seedling-stage care
(1) Light and temperature: Iris is a light-loving plant, so potted plants must be placed in a sunny place. The suitable growth temperature for iris is 15~25°C, and it can tolerate a minimum temperature of 5°C.
(2) Watering and fertilizing: Iris also likes moisture, so more watering should be done. Note that some varieties are not tolerant of waterlogging. In terms of fertilizing, iris is sensitive to fluoride, so fluoride-containing fertilizers, phosphate fertilizers, and triphosphate fertilizers are prohibited. It is recommended to use monopotassium phosphate, applying thin fertilizer frequently, once every half month during the growing season.
(3) Weeding: For the nursery land where iris is planted, weed control work should be done in advance. If there are weeds during the planting process, they should be pulled out by hand in time, and chemical herbicides should be avoided as much as possible to remove weeds.
Iris is widely cultivated because of its emerald-green, verdant leaves and large, unusual flower shape. It can be used to arrange flower beds, as ground cover plants, planted along roadsides, and also used as cut flowers, etc. But if you want iris to grow well and bloom beautifully, the key seedling-raising techniques must be mastered proficiently.
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