What are the cultivation methods and precautions of sunflowers?

Sunflower cultivation method

The sunflower is a plant of the Portulacaceae family, a hybrid of peony and purslane. Common propagation methods of sunflower include sowing, division, and cutting.

Sunflowers are easy to grow and have a wide adaptability to soil. Just choose fertile and loose soil. During the growth period, you must ensure sufficient sunlight so that they can grow lushly.

However, in the hot summer, shade measures need to be taken. In addition, the bottom cover of the flower pot should be checked frequently to check the air permeability of the flower pot. If the air permeability is good, water it every day, and if the air permeability is average, water it every two days.

Watering method

After sowing sunflowers in spring, you should pay attention to water control and try to use spray to replenish water. Summer is a period of rapid growth, it is best to replenish water once a day, in autumn control it to replenish once every 2-3 days, in winter, water it once every half a month to keep the soil slightly dry.

Fertilization method

Although sunflowers are tolerant to poor soil, it is still recommended to fertilize them during growth. Only with sufficient nutrients can they grow more vigorously and bloom longer. The specific fertilizer to be applied depends on the growth stage. No fertilizer is needed in the seedling stage. After germination, more phosphorus fertilizer is needed. Potassium dihydrogen phosphate should be applied once every two weeks. Before flowering, the demand for phosphorus fertilizer and potassium fertilizer is high, so they must be supplemented in time.

Pruning methods

Sunflowers grow fast and need to be pruned during the seedling stage. At this time, the main thing is to pinch the top when 8 to 10 leaves have grown. Just cut off the top of the main stem. During the growth period, you can promptly prune dense branches, overgrown branches, thin branches, and crossed branches. You should also trim the leaves. This will allow better ventilation and enhance light transmittance. It can also save a lot of nutrients and encourage the plant to bloom more.

Precautions for sunflower cultivation

1. Sunflowers have high requirements for water during their growth period and cannot lack water. They usually need to be watered every other day, but water cannot accumulate.

2. Sunflowers like the sun and should be placed in light at ordinary times. They can grow better with sufficient light. It is difficult to bloom without light. Fertilize frequently during the growing season, preferably once every two weeks. It has a certain tolerance to barrenness, but the plant will grow better if the soil is well-drained and fertile.