What season do sunflower flowers bloom and what season do sunflowers bloom?

The flowering period of sunflower is generally in July and August every year, it belongs to the herbaceous plant of the Asteraceae family, and can bloom all the time without light conditions, because sunflower does not have high requirements for external growth temperature, and will bloom when its own temperature reaches a critical point, so if you want sunflower to bloom all the time, you must keep its growth temperature above 10 degrees.

Sunflowers bloom in July and August.

Sunflower, commonly known as sunflower, is an herbaceous plant of the Asteraceae family, which is loved for its peculiar flower shape. So how many months does the sunflower bloom, its flowering period is generally in July and August, the sunflower can always bloom, not affected by the season, we reasonably control the temperature, you can keep the sunflower in bloom.

Sunflowers can bloom all year round as long as the temperature is well controlled. Sunflowers do not have high requirements for external growth temperature, but they slowly accumulate temperature as they grow, and when their temperature reaches a critical point, they will bloom, a process called "accumulated temperature". Sunflowers bloom mostly between 4 and 6 a.m.

Sunflower is a cold-resistant and drought-tolerant tropical plant, the growth temperature requirements are not high, the adaptability is strong, when the growth environment temperature reaches more than 10 degrees, you can germinate and flower, in winter we have to put the plant indoors, and wrap a circle of plastic film around the stem of the plant, do a good job of cold-proof treatment.

The best way to grow is between 30 and 40 degrees Celsius, and the closer to the right temperature, the faster the plant will grow and the flowering period will be longer. In addition, sunflowers do not react very strongly to sunlight, and can bloom normally without light treatment.

The 2019 hollyhock is in full bloom and is about to enter the flowering season.

Sunflower flowers belong to the head inflorescence, shaped like two pots, and the diameter is relatively large, generally about 10-30 cm. The edge of the inflorescence bears pure mountain yellow tongue-like flowers, and the tubular flowers of the middle sex, the shape is small trumpet, small and compact, brown or purple in color, and firm. Flowering time:

May-July. Due to the vast territory of China, the time varies slightly depending on the early and late planting periods, but the flowering period of sunflowers can basically reach more than two weeks. Sunflowers can be sown all year round.

However, for China's climate and environment, because the sunflower tree originates from the middle and tropical regions of the Americas, it likes high temperatures, high heat land, and water, so it is determined that the best time to plant sunflowers in China is from March to April every year. ‍‍

Sunflowers bloom in summer.

Sunflowers bloom in the summer, and the annual flowering time is from July to August. The flowers are yellow in color and appear disc-shaped. Sunflowers are perennial herbaceous plants of the Asteraceae family, with leaves broadly ovate and alternate, with a height of 1 to 2 meters, and some may reach 3 meters.

After the sunflower enters the flowering period, there is a high demand for water, so it is important to provide enough water during the flowering period to ensure that the plant can grow normally. At the same time, it is also necessary to pay attention to the choice of water source, generally choose well water or river water, and avoid using tap water. In addition, it is also necessary to replenish nutrients in time and control the amount of fertilizer.

Ways to prolong the flowering period

Delayed pollination: Sunflowers generally wither after they begin to bear fruit, and delayed pollination can delay fruiting. As long as insects such as bees and butterflies do not approach sunflowers while they are blooming.

Make sure that there is enough light: Sunflowers grow in the sun, and they must have enough light to grow better. The flowering period should ensure that there is sufficient sunshine, which will make it more vivid in color and the flowering time will be relatively prolonged.

Pay attention to keep it warm: some sunflowers are planted late and bloom late, so you need to pay attention to keeping it warm at this time. Warm conditions will make it bloom longer, and too low temperatures will cause the plant to wither and wither.

Sunflowers are summer flowers.

Sunflowers are usually sown in March and April, and generally bloom in July and August. But in fact, sunflowers can bloom all year round, and the secret is "accumulated temperature", that is, plants can bloom as long as they accumulate a certain temperature during growth.

It takes 6 9 days for a sunflower to bloom from the tongue-shaped flower to the tubular flower, and the flowering period is from the second day to the fifth day, which accounts for about 75% of the number of flowers. The flowers mostly open at 4 to 6 o'clock in the morning, pollinate and fertilize the next morning, and the unfertilized branches can be kept for 7 to 10 days without renting the hall and withering.

The flowers of sunflower are capitate, growing at the top of the stem, also called the flower disc, the flower disc has three types: convex, flat, and concave, and there are tongue-like flowers and tubular flowers on the flower disk, the tongue-shaped flowers have 1-3 layers, belong to the asexual flowers, and are born on the edge of the flower disc, and the tubular flowers are amphisexual flowers and are located on the inner side of the tongue-shaped flowers.

Cultivation techniques

1. Sowing: The sowing time of sunflower is generally 3-4 months, the suitable temperature for sowing is 18-25, and it usually sprouts about 5-7 days after sowing. The basic principle of sowing date selection is to sow early or late according to the law of saline-alkali occurrence, so that the seedlings can avoid the damage of saline-alkali.

Spring sowing or summer sowing is carried out according to the growth period of the variety.

2. Seedling: Sunflower cultivation should be early seedlings to prevent seedlings from crowding seedlings, affecting the cultivation of strong seedlings, and even future yields. At the same time, sunflower seedlings should be set as early as possible, which is conducive to cultivating strong seedlings and is also conducive to the development of flower discs, and the seedlings should be set when there are 2 pairs of true leaves.

3, cultivating: sunflower general tillage 2-3 times to weeding and loosening soil, breaking compaction, water storage, reducing evaporation, reducing saline-alkali damage, etc., the first tillage in 1-2 pairs of true leaves combined with seedlings and seedlings, the second tillage in 1 week after the seedling, the third tillage in combination with ditching, soil cultivation, fertilization before the ridge sealing.

4. Top dressing: sunflower is more like fertilizer, ditching top dressing is usually carried out in the third tillage, mainly nitrogen and phosphorus fertilizer, 5 kg of diammonium phosphate per mu, 10 kg of urea, mixed evenly and applied to the soil. By ditching and cultivating soil, it can effectively ensure the growth and development of secondary roots, prevent lodging, and reduce the basal branching below the cotyledons.

Sunflower is a summer flower, its flowering time is generally in summer, among which the flowers bloom best from July to September, generally sunflower only blooms once a year, its flowering period is generally changed according to the environment, the normal flowering period is about three months. At the same time, sunflower is generally planted in March every year is more suitable, after planting 50 days of maintenance can grow normally, it is generally golden yellow after flowering, and it can be used as medicine for chronic osteomyelitis.

Sunflower flowering season.

Sunflower is a summer flower, its flowering time is generally in summer, among which the flowers bloom best from July to September, generally sunflower only blooms once a year, its flowering period is generally changed according to the environment, the normal flowering period is about three months.

Sunflower is generally planted in March every year is more suitable, after planting 50 days of maintenance can grow normally, it is generally golden yellow after flowering, and generally can be used as a medicine for chronic osteomyelitis.

Flowering time of different varieties of sunflowers.

The varieties of sunflowers are bright sunshine, bright moonlight, sunlight beam, teddy bear, red moon, yellow strong, Martian goddess, etc., and generally they prefer a warm environment.

Sunny Bright: Sunny blooms in July, it is characterized by pollen, the color is mainly golden yellow, and generally its flowers grow faster.

Teddy bears: Teddy bears bloom in summer, generally in August, it is relatively low, characterized by rich petals, and has a faint floral fragrance.

Sunflower flowering months from different origins.

Sunflower has a strong adaptability, and its production areas include Inner Mongolia, Jilin, Liaoning, Heilongjiang, Shanxi, Zhejiang, Hunan and other regions, most of which are in the areas north of the Yellow River.

Inner Mongolia Sunflower: Sunflower is planted in most areas of Inner Mongolia, and its flowering time is generally around July every year, the light here is relatively strong, and the sunflower flowers are generally large.

Jilin sunflowers: Many areas of Jilin are suitable for growing sunflowers, generally Jilin sunflowers are yellow and red in color, and it is characterized by a heavier taste.