How to grow sunflowers and when to plant them

1. How to grow sunflowers

1. Suitable soil: Sunflowers have low requirements for soil and can be planted in general soil. However, 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 a lot of water. The plant is tall, has many dense leaves, and absorbs 1.74 times more water than corn. Therefore, in daily maintenance, if you see that the soil is dry, you need to add water to it in time. The water requirements at different growth stages vary greatly. The water demand is relatively low from sowing to budding, the water demand peaks from budding to flowering, and the water demand is also relatively high from flowering to maturity.

3. Suitable temperature: During the entire growth process, as long as the temperature is kept above 10℃, there will not be any major problems with its growth. The daytime temperature should be around 21-27℃, and the nighttime temperature should be around 10-16℃. Within the suitable temperature range, the higher the temperature, the faster it develops.

4. Adequate light: Sunflower is a short-day plant and is not very sensitive to sunlight. Sunflowers need to receive sufficient light, at least 10 hours of sunlight a day, which is conducive to their growth.

2. When to plant sunflowers?

The sowing time for sunflowers is generally from March to April, and the suitable temperature for sowing is 18-25℃. Usually the seeds are planted after the temperature rises to 20 degrees, and they will begin to germinate in about 10-15 days. When planting sunflowers in potted plants, try to choose a larger flowerpot, and then choose a slightly acidic or neutral soil with good drainage and humus. Place 2-3 seeds about 2 cm deep in the middle of the pot. After sowing, water it thoroughly and place it in a warm and ventilated place to let it germinate.