Planting and maintenance of ornamental Sunflower

Ornamental sunflowers can be planted in courtyards or gardens, and the ornamental effect is very good. Generally, after the ornamental sunflower is sown and germinated, it needs to be transplanted and planted, and the maintenance at this time is very important for the growth of the ornamental sunflower in the future.

Ornamental sunflower

1. Temperature: the suitable temperature for its growth is 21 ℃ 27 ℃ in daytime and 10 ℃ at night. For example, the temperature in early spring is low and the plant growth is slow, which directly affects the flowering time. In the growing period, if the temperature exceeds 30 ℃, the temperature difference is too small, the stems and leaves are easy to grow, and the florescence is shortened.

2. Moisture: the large plant matrix is relatively less, so the growing period should be watered in time, otherwise the leaves are easy to dehydrate and wither. But should not be too wet, the humidity is too large, the basal leaves are easy to yellowing.

3. Fertilizers: fertilizers are applied once a week during the growing period, and more than 800 times of compound fertilizers are applied alternately after water release.

4. Cultivation: potted plants do not pick the heart, it is better to have a single flower. For potted long-stalked varieties, the plant height can be controlled by spraying leaves with 0.25%-0.4%B9 solution 20 days after germination. If you watch the flower bed, you can pick the heart once, and the branches can produce 4 murals and 5 flowers.

How to watch sunflowers? how to watch common varieties of sunflowers

Sunflowers always symbolize a positive attitude towards life, following the sun. Toward the sunshine, optimistic and strong. Many flower friends will like it, in addition to these symbols, it looks very beautiful. Sunflowers are also classified and can be divided into several kinds, so let's learn about the breeding methods of sunflowers.

Culture methods of ornamental sunflowers:

The suitable temperature for germination of ornamental sunflower is 22 to 30 ℃. It can germinate 5 to 7 days after sowing and transplant once when 4 to 6 true leaves are sent out. The seedling height is about 10 cm, and the root is covered with soil to consolidate the root to avoid lodging. Topdressing was applied immediately after the planting survived, and the effects of organic fertilizer and chemical fertilizer were ideal. After the formation of flower buds, it is appropriate to irrigate more water to keep the soil moist.

1. The dwarf sunflower is 30 to 40 cm high and 10 to 17 cm in diameter. The single petal is bright golden and the flower heart is black. Generally, it can blossom 50 to 55 days after planting, which is suitable for potted plants and flower beds.

2. The seedlings are sowed and propagated, which are usually sown in April. The optimum temperature for germination is 15 to 18 ℃, which can be sowed in a shallow basin or box, with loose media, good water retention, asepsis and so on. Sowing on demand is appropriate, sowing 2 grains per hole, covering 1 to 2 cm thick medium after sowing, in order to maintain the humidity needed for germination, increase the stability of seedling stage and reduce the occurrence of shelled seedlings. Generally germinate 7 to 14 days after sowing, pay attention to ventilation and cooling after emergence, control humidity, and gradually see the light.

3. Planting and maintenance when the seedlings come out one after another, one plant is left in each hole, and the seedling height is 7 to 8 centimeters. The basin soil should be sandy soil which is rich in humus and well drained. When planting, apply sufficient basal fertilizer to the bottom of the basin, and dig up the seedlings with more soil and less root damage, so as to make the plant recover quickly. Dwarf sunflowers like sunny and warm environment, not resistant to shade and cold. Fertilization should be applied once every 20 days during the growing period, but thin phosphorus and potassium fertilizer should be applied 2 or 3 times before flowering. Always keep the soil moist, especially when it is hot and dry in summer. In order to make the terminal bud of the main branch grow and develop healthily, the (axillary) bud can be removed. A pillar should be set up for those with a slightly higher stem to prevent the wind from falling down. Artificial pollination during flowering can improve the seed setting rate.

Common varieties of ornamental sunflowers:

1. "Baqiduo" is a brand-new sunflower variety, and the spherical and naturally dwarfed plant shape is very suitable for container planting. "Baqiduo" plant height is only 50 cm, with dwarf nature, compact plant shape, can produce a large number of branches, these lateral flower heads can ensure that the plant forms a full ball. Baqiduo is a perfect variety of potted flowers. It takes only 60 days for Bachido to sow and blossom. There are five kinds of colors: Golden Yellow Heart, Golden Yellow Heart, Lemon Yellow, Red and Red Yellow.

2. Sunflower "wow" is a sunflower variety with a large number of gorgeous golden flowers and green decorative leaves. The "wow" plant is 90 centimeters tall, with luxuriant flowers blooming at the top of the plant, the black heart brightening the golden petals, and its extremely decorative dark green leathery leaves are also very attractive. "Wow" has a longer life and usually blossoms later than other varieties of sunflowers, so it is an ideal plant material to bring colors to the end of summer.

3. Sunflower "Autumn time" is a breakthrough sunflower variety. "Autumn time" plant height of 120 cm, is the first medium-to-high type of sunflower mixed color variety, the flowers are golden yellow, red, brown. The trunk can produce a large number of branches and is very suitable for cutting flowers.

4. Sunflower "Jinhui" is a very eye-catching sunflower variety. Can grow a large number of golden flower heads, forming a golden isolation belt. "Jinhui" plant height of 160 cm, crown width of 90 cm, with a strong branching, the plant is very compact. Bloom extremely luxuriant, bright golden yellow flowers, flowers up to 15 cm in diameter. "Jinhui" takes only 60 days from sowing to flowering, so it is an ideal variety of cut flowers.

5. Sunflower "Golden Autumn" is the only sunflower variety with an amazing geometric pattern. "Golden Autumn" plant height of 70 centimeters, gorgeous golden petals around the fresh green flower heart, very attractive. "Golden Autumn" is the perfect choice for fresh cut sunflower bouquets.

6. Sunflower "Yanyang" is a dwarf double sunflower variety. The plant is 60 cm high and the flower diameter is 15 cm. The golden flower is highly double and blossoms luxuriantly.

7. Sunflower "moonlight", the green flower heart is its characteristic, which is different from the general black flower heart, so it makes people have a kind of fresh feeling.

8. Sunflower "cocoa", a red variety of sunflower, is very special but not easy to cultivate, and sometimes it is "red to black".

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The management method of dwarf sunflower after planting and the matters needing attention in its maintenance.

When it comes to sunflowers, I believe everyone is no stranger. So, how much do you know about ornamental sunflowers? Is there anything special to pay attention to in the cultivation of ornamental sunflowers? Today, the editor will give you a detailed introduction to the management methods of ornamental sunflowers after planting. Let's learn from the editor.

After the ornamental sunflower is sown and germinated, we need transplanting and planting, and the whole growth and development period of the ornamental sunflower needs plenty of sunlight. Such as continuous rain or long-term growth in the semi-overcast environment, the stem is not straight and straight, the leaves are soft, drooping, yellowish green, and the disk is small and irregular.

Temperature: the suitable temperature for its growth is 21-27 ℃ in daytime and 10-16 ℃ at night. For example, the temperature in early spring is low and the plant growth is slow, which directly affects the flowering time. In the growing period, if the temperature exceeds 30 ℃, the temperature difference is too small, the stems and leaves are easy to grow, and the florescence is shortened.

Moisture: the large matrix of the plant is relatively less, so the growing period should be watered in time, otherwise the leaves are easy to dehydrate and wither. But should not be too wet, the humidity is too large, the basal leaves are easy to yellowing.

Fertilizers: fertilizers are applied once a week during the growing period, and more than 800 times of compound fertilizers are applied alternately after water release.

Cultivation: potted plants do not pick the heart, with a single flower is better. For potted long-stalked varieties, the plant height can be controlled by spraying leaves with 0.25%-0.4%B9 solution 20 days after germination. If you watch the flower bed, you can pick the heart once, and the branches can produce 4-5 flowers.

That's all I know about sunflowers today. I hope it will be helpful for flower friends to read this article. If you want to know more about sunflowers, please continue to follow the succulent flower beds and we will provide you with more related knowledge!