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Sunflowers grown in the field are mainly in mid-summer or late summer and early autumn. Sunflowers usually bloom between July and August between 4 and 6 a.m. The flowering period of a single plant is about two weeks, and the duration of the full flowering period is about 35 days.
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1. Sunflowers generally start to wait for the sun to rise at 3 o'clock in the morning every day, and then gradually bloom between 4 and 6 o'clock in the morning.
2. Sunflowers can bloom all year round as long as the temperature accumulates enough. When its flowers are open, it takes about a week to open from tongue-like to tube-shaped.
3. It's just that after the sun sets at night, its flower disc will droop significantly, but the plant is still straight, and the auxin in the body will also be rearranged and slowly turn to the starting position.
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Sunflower is an annual herbaceous plant, the flowering period varies with the variety, generally in summer and autumn flowering, generally speaking, sunflower in April when sown, the flowering period is in July to August, the size of the flowers varies. The seeds mature between August and September
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Sunflowers are divided into early-maturing varieties and late-maturing varieties, with late-maturing varieties flowering in summer and harvesting in late fall, and early-maturing varieties flowering in early August and harvesting in late autumn.
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Hello, what season is sunflower flowering Sunflower, generally blooming in summer, this should be a normal season.
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The sunflower flowering season is summer, June-July.
If the flowers are sown in April every year, the sunflower blooms from July to August of that year, and the seeds will mature from August to September. In addition, it can be promoted to bloom all year round by accumulating temperature. As long as the temperature is sufficient, it can bloom.
Potted sunflowers usually start to bloom in June every year.
It usually takes six to nine days for a sunflower to fully open. Generally, it is in full bloom from the second day to the fifth day after flowering, and the number of flowers is large and the ornamental value is high.
Flowering form
The flower type of sunflower has a single petal and a double petal, and the outer ** is like a large flower disk. The flowers are diverse in color, with golden, orange-yellow, and purplish-red, and flower discs with tongue-shaped and tubular flowers.
Ways to prolong the flowering period
Sunflowers generally wither as soon as they begin to bear fruit, and pollination can be delayed by delaying the fruiting time. Just don't let insects such as bees and butterflies get close to sunflowers when they are in bloom.
Get plenty of light:
Sunflowers grow in the sun and 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.
Control the amount of watering:
Sunflowers themselves do not like water, so be sure to control the amount of watering during the flowering period. Watering too much will make it grow faster, speeding up the end of flowering. Otherwise, the flowering period will be relatively longer.
Take care to keep it warm:
Some sunflowers are planted late and bloom later, so you need to pay attention to keeping them warm at this time. Warm conditions will make it bloom longer, and too low temperatures will cause the plant to wither and wither.
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Sunflowers are usually sown around February to April each year, and according to the growing cycle, sunflowers bloom in the summer, which coincides with the hottest months of July and August. However, due to inconsistent planting times, some flowers bloom in May or October. The flowering period of sunflowers can be extended by manual intervention, which can be delayed by delaying pollination to help prolong flowering, in addition to ensuring sufficient light and temperature, and controlling the amount of watering.
1.Sunflower flowering periodSunflowers are generally sown around February to April every year, and it takes about 60 to 80 days from the development and maturity of the seeds until around flowering. In terms of growth cycle, sunflowers bloom in summer, which coincides with the hottest months of July and August.
At this time, the sunflowers bloom one after another, as if urging each other. However, if some sunflowers are planted late, their flowering will be delayed. Because sunflowers are vigorous and can be sown all year round, it is also common for sunflowers to bloom in May or October.
2.When do sunflowers bloom Because the planting time of sunflowers is inconsistent, the flowering season is also inconsistent. However, most of them still bloom in July and August, which is in the summer. Some are also open in late spring, early summer, or early fall.
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Sunflowers and corn are in the same season, sunflowers can be planted with corn, but most of them are still later than corn, and the flowering time of sunflowers is to bloom when there is sun, like this sun, without the sun will not bloom.
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Sunflowers bloom between July and August and bloom from 4 to 6 a.m. The flowering period is about two weeks, and it takes 6 to 9 days from bud to full bloom, of which the duration of the full flowering period is 35 days. However, it can now be planted all year round, so it can also be seen blooming in May and October, between 4 a.m. and 6 a.m.
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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.
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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.
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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.
This is because the flowers of sunflowers always open towards the sun. The sunflower flower plate is always facing the sun.
The sunflower is happy, and it has to rest at night, and when it rests, it has a better spirit, and it is good to be the most authentic self.
1. Silent love
The meaning of the sunflower is silent love, because it has been silently revolving around the sun and growing silently with the sun. Although it is not as delicate as a rose, it has a unique charm. It is generally used as a metaphor for a person who has a deep affection and a secret crush, expressing a desire for love. >>>More
Auxin is backlit at the receptacle, so the stem on the backlit side grows faster, and the stem bends towards the light source.