What months do sunflowers bloom?
This article introduces the blooming months of sunflowers and related knowledge about the flowering time of sunflowers. Next, the editor will introduce to everyone.
Sunflowers have many characteristics; they are annual plants of the sunflower genus in the asteraceae family. The flowering period is from July to September, and the fruiting period is from August to September. They bloom and bear fruit once a year. The sunflower's inflorescence is a capitulum that grows at the top of the stem, commonly known as the flowerhead. The flowerhead always faces the direction of the sun, hence the name "sunflower." Through the research of scientists, it has been decrypted that the reason for sunflowers "-facing the sun" is due to a special growth hormone contained in the plant. This growth hormone is afraid of light, can move, and often hides in the shadow under the plant's flowerhead. The side facing the sun has a lower concentration, while the side away from the light has a higher concentration, so the side away from the light grows quickly, causing the sunflower to bend towards the sun.
Sunflowers grow best in sunny and moist areas. The wild sunflower habitats are mainly grasslands and dry, open areas. They grow along roadsides, fields, desert edges, and grasslands. Sunflowers give people a thriving feeling, and their color makes people feel warm.
Physical characteristics
The stem of the sunflower is erect and robust, growing up to two to three meters in height. The ovate inflorescence usually alternates in a capitulum shape, with the petals in a ligulate form. Both the front and back surfaces are covered with villous hair and relatively rough, with sawtooth edges. The flowerhead is usually yellow, with a diameter of 10-30 centimeters, and includes ligulate flowers and tubular flowers, among which the fruit development relies on tubular flowers.
Habit characteristics
As an annual herbaceous flower, sunflowers are easy to manage, sturdy, and can tolerate high temperatures in summer and low temperatures in autumn and winter. Their optimal temperature range is between 21-26 degrees Celsius. The ground temperature can germinate at 5 degrees Celsius, and normal growth and development can occur at 10 degrees Celsius. The growth period of sunflowers is generally 85-120 days, divided into four growth stages: seedling stage, bud stage, flowering stage, and maturity stage.
What months do sunflowers bloom?
Sunflowers have low soil requirements and can grow in various types of soil, from fertile soil to dry land, poor, and saline-alkali soil. They not only have strong salt and alkali tolerance but also have salt absorption properties. They can thrive in alkaline soil and have strong drought resistance.
Sunflowers prefer sunlight, and both their flowerheads and leaves have strong phototropism. Sufficient sunlight during the early growth stage can promote healthy germination; sufficient sunlight during the mid-growth stage can increase pollination rates and promote sturdy stems and leaves; and sufficient sunlight during the later growth stage can promote the growth and development of the seeds.
Sunflowers require a lot of water and should be watered in a timely manner to prevent the soil from completely drying out. The water requirement is also high during the flowering to fruiting stage, and a lack of water at this time may cause a significant reduction in the oil content of the sunflower seeds.
There are sixty-two varieties of sunflowers, including the American Giant, Autumn Plumb, Smiles, Black Oil, Sunsets, and Clowns, among which the American Giant can grow up to four meters in height, Autumn Plumb has rust-red, golden, and yellow flowers, Smiles have smaller flowers but more in number, like smiling faces.
Flower language
The flower language of sunflowers is admiration and brave love. Because its flowerhead always faces the sun, it also symbolizes loyalty.
The introduction of the blooming months of sunflowers and related knowledge about sunflower flowering time by Green Plant Enthusiast Network is hoped to be helpful to you. Don't forget to visit Green Plant Enthusiast Network more for more experience and knowledge!