How to plant the seeds of zinnia

Zinnia is an annual flower with a long flowering period and can bloom for about 100 days. Hundred-day grass can be in full bloom from early summer to autumn for people to enjoy for a long time, so there is the name of "hundred-day grass" and the name of "long-lasting grass". Seeing the beautiful posture of the hundred-day grass, I can't help thinking of my friends from afar, and the flower words come from this. Its floral phrase is "miss distant friends, Tian Chang Di Jiu (Eternal Dumpling)", symbolizing everlasting friendship. And the first flower of zinnia blossoms at the top, and then the top of the side branch blossoms more than the first, one higher than the other, which will inspire people's ambition, so it is also called "step by step".

Some flower friends want to raise hundred-day grass, but do not know how to grow it. In this paper, from the point of view of flower friends, starting from the most basic sowing of hundred-day grass, so that flower friends can have a detailed impression of how to grow hundred-day grass. This article is aimed at flower lovers. Non-large area zinnia planting.

1. Hundred-day grass sowing

Many flower friends buy zinnia seeds, starting from the sowing of zinnia, and those who buy seedlings directly can skip this step. Zinnia seeds germinate at an appropriate temperature of 20-25 degrees, generally germinate in 7-10 days, and bloom about 70 days after sowing. 2-3 true leaves are transplanted and 4-5 hearts are removed, which can be colonized after 2-3 times of transplantation. Generally speaking, the sowing time is about the middle and last ten days of April, as long as the temperature meets the germination temperature. When sowing zinnia, be sure to cover a layer of soil, or perlite, vermiculite and so on, because zinnia is a variety of flowers and plants that avoid the light.

The seed life of zinnia is 3 years, and the germination rate is about 60%. Try to choose the full seeds of the previous year to improve the seed germination rate. The sowing date can be determined according to the flowering time, and it takes about 75-90 days from sowing to flowering. Before sowing, the soil should be strictly disinfected to prevent diseases and insect pests during the growing period. It is OK to choose Dvordo organic nutrient soil, we have been disinfected. If you choose other soils, you can use high-temperature fumigation (0.05% potassium permanganate or 1000 times formaldehyde) to kill bacteria, pests and grass species.

Before sowing, the seeds were soaked in 20-40 degrees warm water for about one day to fully activate the seeds. After the substrate was moist, the seeds were sown on demand. Zinnia is a photophobic flower seed, and a layer of nutritious soil must be covered after sowing. At the temperature of 21-23 ℃, it can germinate in 3-5 days, and no light is needed during the germination period. after germination, the seedling bed maintains 50% 60% water content, not too wet, so as to avoid rotting roots or quenching disease.

2. Zinghui grass transplant

After the seedlings grew 2 leaves, the seedlings were transplanted once, and the root system was underdeveloped, and the lateral roots were less. Generally, the seedlings were planted in pots when 2 true leaves were planted, and the soil should be carried when transplanting. The transplanting substrate should be loose, fertile and well drained, and the organic nutrient soil could be used. The planting depth was 0.5 cm below the cotyledons, and the soil was gently pressed and watered after planting.

Pick the heart many times. Hundred-day grass to pick the heart many times, the first time in the 6 leaves, leaving 4 leaves to pick the heart, a total of 2-3 times. Fertilize to prevent disease. After the growth of the plant is stable, the soil should be kept moist. Devodor liquid fertilizer should be used every 10-15 days after planting in the seedling stage, and the dilution multiple should be 1RU 300-600 times. In the midsummer season, it is appropriate to apply thin fertilizer and replace water with fertilizer. From budding to flowering, spray 500 times Devodo to urge the king of flowers every 5-7 days.

3. Daily maintenance of hundred-day grass

To grow short hundred-day grass need to pick the heart many times, the first time in 6 leaves, leave 4 leaves to pick the heart for a total of 2-3 times, after each picking heart, apply potassium dihydrogen phosphate, especially from budding to flowering, spray 0 every 5-7 days. 2% potassium dihydrogen phosphate. Fertilize to prevent disease. After the plant growth is stable, the soil should be kept moist, water should be watered in the morning and evening in summer, 200 mg / L nitrogen fertilizer and organic liquid fertilizer should be applied every 5-7 days, compound fertilizer should be used after 2-3 times of application, and thin fertilizer should be applied in the middle of summer.

4. Management of flowering period of hundred-day grass

After flowering, the residual flowers were cut off from the base of the flower stem (leaving 2 pairs of leaves) and topdressing 2-3 times after pruning to ensure the water and fertilizer needed for plant growth so as to prolong the whole flowering period. The hundred-day grass can not stand the heat, and the blossoms will be rare and the flowers will be smaller in August, so it is necessary to strengthen irrigation to control red spiders. In this way, it can blossom and bear fruit normally in September. The plant died gradually after frost in autumn.

Time: 2019-05-25 Click: