When do sunflowers bloom?
Below is a detailed introduction for netizens on when sunflowers bloom and the green plant care tips for maintaining sunflowers, followed by a comprehensive introduction.
The color of sunflower blooms is particularly bright, and they are extremely vibrant even in the scorching sun. Because sunflowers thrive in sunny environments and only bloom when exposed to sunlight, they close up during rainy days or at night, hence the name "sunflower," which can also be called "noon flower."
The blooming period of sunflowers is from May to November, lasting a full half year. Seeing that flower enthusiasts start posting their sunflowers on forums from May, there are often questions among flower friends: Why is your blooming period so long? Why do my sunflowers fade after a few days? Don't worry, let's answer these questions from planting to the end.
I. Light
Sunflowers are very dependent on sunlight, and it can be said that the growth of sunflowers cannot be separated from sunlight. Therefore, they are especially suitable for cultivation in courtyards or on rooftops. Even when grown indoors, make sure to provide ample sunlight for sunflowers, with at least 8 hours per day being optimal, otherwise, the leaves will consume nutrients in vain, which is very detrimental to blooming. During hot summer weather, maintain ventilation and there is no need for additional shading.
II. Temperature
Sunflowers are not cold-tolerant and grow most vigorously at temperatures between 25-30°C. If it's hot, it's fine, but if the temperature is low, the growth of sunflowers will slow down until it stops. Therefore, to ensure sunflowers survive the winter, they should be kept in temperatures above 10°C, also to prevent frostbite.
III. Watering
Sunflowers are drought-tolerant and do not fear dry soil and air, but they cannot tolerate overly moist environments. Therefore, the amount of watering must be controlled. Only during the dog days of summer, when water evaporates too quickly, is it necessary to increase the amount of watering. You can adopt the "dry-wet" principle for watering, watering thoroughly each time, and only watering when dry.
At the same time, to prevent rapid loss of water in the hot summer, avoid watering at noon when the temperature is highest during the day. It is better to choose early morning or evening when the air and water temperatures are not too different to prevent sunflowers from suddenly encountering icy water temperatures, leading to rapid wilting.
IV. Fertilizing
Because sunflowers have strong adaptability, they do not require special soil conditions. However, if you want a longer blooming period for sunflowers, you need to rely on fertilizing for assistance. During the growth period of sunflowers, you can apply a compound fertilizer once, and before blooming, apply potassium or phosphorus fertilizer every half month. This way, sunflowers get enough nutrients, resulting in more and more vibrant blooms.
When do sunflowers bloom?
V. Soil Turning
If you want sunflowers to have an extended blooming period every year, the soil turning work is something that cannot be ignored. Every 1-2 years, you can perform a thorough soil turning or even potting, turning over the compacted soil and replacing it with new, loose and fertile soil. After some root pruning, replanting can give sunflowers a new life.
The pot for sunflowers does not need to be too large. If you want to extend the blooming period and achieve a full pot effect, a mouth diameter of about 15 centimeters is usually sufficient. Also, make sure there is a drainage hole at the bottom to facilitate drainage and prevent waterlogging.
VI. Pruning
When new branches grow from the seedlings of sunflowers, pruning the top of the main stem can result in many new buds. If you don't want sunflowers to grow too tall and think it might affect the aesthetics, you can control the height of sunflowers by pruning the top. It will also look more ornamental. When encountering situations of excessive growth of branches and leaves or reduced flower yield, prune the old branches boldly, cutting them to below 10 centimeters.
Have all these methods for extending the blooming period of sunflowers been mastered by flower friends? What other tips do you have for extending the blooming period of sunflowers? Please leave a comment below to tell us!
The comprehensive knowledge explanation about when sunflowers bloom and the precautions for maintaining sunflowers mentioned above is hoped to be helpful to you.