What tools do you need to grow sunflowers?
First, prepare a pot of soil.
Although "barren tolerance" is one of the characteristics of sunflower, its growth does not care about the quality of soil, but as a flower grower, flowers are always expected to grow strong roots, rich leaves and bright flowers, so it is better to prepare a loose, breathable and fertile soil as much as possible.
During this period, you can collect expired oily food at home, such as sesame powder, bean dregs of self-ground soybean milk (let it ferment), or fish intestines (ferment in advance) as base fertilizer.
Second, sow.
At the end of April and the beginning of May, the climatic conditions in the south of the Yangtze River are most suitable for sowing. Last year, I planted the seeds on April 28th, and after three or four days, the flowers will break their shells and sprout. On June 14, the bud bloomed. The growth period of 1 half month is 10 days earlier than the previous 55 days, which can be described as rapid growth and long speed. The secret of this period lies in sowing.
In order to make the seeds in close contact with the soil, it is only necessary to spread the seeds evenly on the surface of the fine soil, and then cover it with a thin layer of fine soil.
Third, raise seedlings.
It is very important to ensure that the seedlings can survive the emergency period safely. Have enough patience to care for them, just like treating an infant. If we don't pay attention, Xin Wei will die, which will greatly reduce the seedling rate.
Fourthly, transplanting between seedlings.
Spacing, also known as transplanting seedlings, is to keep a certain distance between seedlings. Select a pair of tweezers with sharp tips for the thinning tool. When the flower seedlings grow to a few millimeters high, they can start thinning. By batch and time-sharing, the relatively fine ones are always removed, leaving the thick ones until there is still a gap of three or four centimeters between the seedlings.
Fifth, choose the head.
When the seedlings grow to 3 or 4 cm high, branches grow from the roots. At this time, when the tip of the main branch is removed, clusters of branch buds will soon sprout at the fracture. When the branch of the root grows to a certain length, the head of the branch can also be picked. After this treatment, the sunflower became shorter and the plant became beautiful.
Sixth, water.
The weather at seedling stage is not very hot, and the water vapor evaporates slowly, so it is not advisable to water too much. The flowering period is in dog days, so it needs to be thoroughly watered and fully absorbed.
Seven, seed collection
Mature sunflower seeds are silvery gray, but it is difficult to harvest them at the right time. The seed clip is either cracked or the seed is gone. Therefore, always touch those yellow seed shells with your hands, and the seed shells that fall off when you touch them are the best; I can't touch it, but the shell is yellow and white. I also picked it and pinched it with two fingers to expose the black seeds. This is because it is still a little damp. After a while, the black seeds will turn into silver-gray seeds.
Matters needing attention in sunflower cultivation:
1. Seedling overwintering: After the first frost and solar term (Shanghai area) every year, move the double-petal sunflower to indoor sunlight. Put it on the inside of the glass window after winter, so that the soil in the basin is a little dry, and it can be safely wintered. After Tomb-Sweeping Day in the following year, the flowerpot can be placed outside the window, and it needs to be maintained in the window in case of cold current.
2. Cutting time: from the beginning of May to the end of August, the top of the tender stem of about 5 cm can be cut off for cutting.
3. Preparation of culture soil: It can be prepared by mixing 3 parts of garden cooked soil, 5 parts of yellow sand, 2 parts of chaff ash or fine sawdust evenly and adding a little calcium superphosphate powder.
4. Planting containers: pottery pots, porcelain pots, plastic flower pots or other containers with water seepage at the bottom. Put tiles on the bottom of the seepage to facilitate seepage, and then plant them in the culture soil.
5. Cutting method: planing the culture soil in the container, and inserting the cut sunflower twigs into the holes poked by bamboo chopsticks, with the depth of the culture soil not exceeding 2 cm at most. In order to make the potted flowers shape and plump as soon as possible, one pot can see the size of one pot. As long as the spacing of 2 cm can be maintained, multiple plants can be cut (other pots can be planted when there are many seedlings).
Then pour in enough water. New cuttings can be shaded or not. As long as a certain humidity is maintained, they can survive for 10 to 15 days and enter normal maintenance.
6. Peacetime maintenance: Sunflowers have fewer pests and diseases. Maintaining a certain humidity at ordinary times and applying one thousandth of potassium dihydrogen phosphate once every half month can achieve the purpose of large flowers, bright colors and continuous flowers. If multiple varieties are cut in a pot and all kinds of flowers are opened in a pot, the appreciation value is higher.