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 seedlings are planted at a height of about 10 meters, and the roots are covered with soil to consolidate the roots 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 yellow and the flower heart is black. 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. It is appropriate to sow on demand, sowing 2 grains per hole and 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 meters. 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. The plant height of "Baqiduo" is only 50 cm, which is dwarf, compact and can produce a large number of branches. these lateral flower heads 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 meters tall, with luxuriant flowers blooming at the top of the plant, black hearts that brighten 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 meters, 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" has a height of 160 cm and a crown width of 90 m. It has a strong branching property and the plant is very compact. Bloom extremely luxuriant, bright golden yellow flowers, flower diameter of up to 15 meters. "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 meters, 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 "Kege", a red variety of sunflower, is very special but not easy to cultivate, and sometimes it is "red to black".

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