How to grow sunflowers, when to plant sunflowers

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It is best to grow sunflowers in weakly acidic or neutral soil with good drainage and humus; avoid long-term water shortage and water when the soil is dry; ensure that the growth temperature is around 10-27℃; it needs to be every day Receive about 10 hours of sunlight. Sunflower sowing time is generally from March to April, and the temperature is 18-25℃. Usually, planting occurs after the temperature rises to 20 degrees, and the seeds will begin to germinate in about 3-4 days.

1. How to grow sunflowers

1. Suitable soil: Sunflowers have low soil requirements and can be grown in ordinary soil. But if you want sunflowers to grow better, it is best to choose slightly acidic or neutral soil with good drainage and humus.

2. Proper watering: It is relatively heat-resistant, but it is also a plant that consumes more water. The plant is tall, with many and dense leaves, and its water absorption is 1.74 times that of corn. Therefore, in daily maintenance, if you see the soil is dry, you need to replenish it with water in time. The water requirements of different growth stages also vary greatly. The demand for water from sowing to budding is low, the peak of water demand is from budding to flowering, and the water demand from flowering to maturity is also high.

3. Suitable temperature: During the entire reproductive process, as long as Ensure that the temperature is not lower than 10°C, and there will be no major problems with its growth. The daytime temperature should be around 21-27℃, and the nighttime temperature should be around 10-16℃. Within the appropriate temperature range, the higher the temperature, the faster it develops.

4. Sufficient light: Sunflowers are short-day plants and are not very sensitive to sunlight. It needs to receive sufficient light, at least ensuring that it can receive about 10 hours of sunlight every day, which is conducive to the growth of sunflowers.

2. When to plant sunflowers

Sunflower sowing time is generally from March to April, and the suitable temperature for sowing is 18-25℃. Usually when the temperature rises to 20 degrees before planting, the seeds will begin to germinate in about 10-15 days. When planting sunflowers in pots, try to choose a larger pot, and then use weakly acidic or neutral soil with good drainage and humus. Place 2-3 seeds in the middle of the pot about 2cm deep. After sowing, water it thoroughly and then place it in a warm and ventilated place to allow it to germinate.

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