How does a sunflower bloom?
This topic answers netizens' questions about how sunflowers bloom and precautions for planting sunflowers, followed by a detailed sharing of content.
When do sunflowers bloom (how to plant sunflowers yourself) and what should be noted when planting sunflowers, how to plant sunflowers yourself. Sunflowers usually bloom in all seasons, mainly in summer and winter. Their blooming period is from mid-July to late August, usually lasting for two weeks and can be seen for a long time. If the plants are placed in water, they can only maintain for 3-4 days. If preserved with strong tea water, the duration can be extended.
How long can sunflowers be kept in water during the blooming period: the blooming period can usually be in all seasons, mainly in summer and winter, from mid-July to late August, which may vary slightly by region. The blooming period generally lasts for two weeks, with a longer viewing time. The bright flowers look like the sun and rotate with it. The seeds inside are not only suitable for display and have ornamental value, but also have economic value and oil-extraction functions, making it a multifunctional plant.
Second, the blooming habits of sunflowers: when sunflowers bloom, it usually takes 6-9 days for the flower disk to bloom from the ligulate flowers to full bloom. Sunflowers bloom from the second to the fifth day, with a lot of conversations during these days. Sunflowers bloom at 4-6 am and can be pollinated the next morning. If not pollinated, these flowers can survive for 7-10 days. Sunflower flowers are still very eye-catching, with single or double petals. At first glance, it looks like a large disk. There are two types of flowers on the sunflower disk, ligulate flowers, and tubular flowers.
3. How long can sunflowers live in a vase: inserting the plant in water and cutting the base at a 45-degree angle can increase the water absorption area, making it easier to survive. If treated with clean water, it can only be treated for 3-4 days. If pickled with strong tea water, the duration can be extended. It should also be noted that it cannot be treated in strong sunlight and may be exposed to diffused light, which is beneficial for survival. In addition, preservatives can be added to keep the flowers fresh.
Fourth, what should be paid attention to when raising sunflowers? Sunflowers are usually maintained by annual flowering plants. They can be seen in summer and autumn. They are very popular ornamental flowers, easy to grow, and suitable for driving and training after the warm spring. They can be directly seeded and propagated, and children can raise them well.
Before sowing, observe the average outdoor temperature. If the minimum temperature is above 18 degrees, sunflowers can continue to grow. Sunflowers should be fixed in one place to avoid transplanting. Once transplanted, they are easily damaged. Sunflowers can be planted until frost arrives, with temperatures maintained between 18-33 degrees.
Sunflowers can bloom and start seed reproduction about 80-120 days after planting. Sunflowers can be planted indoors in winter in frost-free areas, but it is best to plant after the warm spring. Many of the sunflower varieties we buy now are hybrid varieties. If you choose potted sunflowers, you must select some dwarf varieties, including those with a height of about 30 centimeters, and some giant sunflowers that can grow to 3-4 meters tall.
Sunflower seeds can be wrapped in a damp paper towel before sowing. The paper towel should be slightly folded and kept moist in a warm place. After 2-3 days, the sunflower seeds can be taken out and planted in the soil. If the seeds are planted directly in the soil, it may take two to three weeks to germinate, but if wrapped in a damp paper towel, the seeds will germinate in about three days, so be careful not to damage the roots after germination.
After sowing sunflowers, they should be placed in a location with sufficient sunlight, with more than 6-8 hours of sunlight per day. Avoid placing them in shaded areas and give them as much light as possible each day. Of course, avoid strong wind erosion, as the branches can easily be blown over.
When planting sunflowers, choose deep, loose, breathable, and well-draining sandy soil. The soil should not accumulate water or remain moist for a long time to avoid root rot. If necessary, dig a hole 60 centimeters deep and completely loosen the soil. Sunflowers are not very picky about soil, but the most important thing is to maintain soil drainage and avoid waterlogging. If the soil is very poor, it is necessary to add appropriately matured fertilizer or organic compost.
Only one sunflower is needed in each pot. When sowing, press the seeds into the soil by about 2-3 centimeters. During the seedling care period, the soil should be slightly moist, with no waterlogging. After the seedlings grow strong, give as much sunlight as possible, control watering, and the soil should not be moist for a long time. Water渗透 once a week, slightly increasing the watering frequency during dry and hot periods.
Sunflowers do not need to be fertilized frequently. In spring and summer, a slow-release fertilizer can be supplemented every three to four weeks. It is not recommended to use concentrated fertilizers, but some long-acting organic granular fertilizers can be applied directly.
The above is the full content of how sunflowers bloom and precautions for planting sunflowers, hoping it is helpful to green plant enthusiasts!