What is the propagation method of sunflowers? How to propagate sunflowers that do not produce seeds?

1. Seed propagation

1. Time: Sowing is a commonly used propagation method, and it is usually carried out in spring. The climate and temperature in this season are very suitable, which is conducive to its germination and growth. Of course, if the temperature can be well controlled, it can also be carried out in summer or autumn.

2. Method: Prepare the soil before sowing. The soil should be loose and have good permeability. If it is planted in the ground, deep plowing of the soil should be done first to ensure it is loose. Once it is ready, you can sprinkle the seeds on it. Try to ensure even spreading when spreading, then cover with a thin layer of soil and water until moist, and new sprouts will appear in about 10 days. Once the seedlings have grown steadily, they can be transplanted and managed normally.

2. Cutting propagation

1. Time: This method is mostly used for varieties that do not produce seeds and cannot be propagated by sowing, so it can be carried out through cuttings. The recommended time is between May and August each year. During this period, there is abundant rainfall and the climate is warm, which is conducive to germination and rooting.

2. Method: Choose young stems without diseases and insect pests as cuttings, and the length should be controlled at about 5 cm. The soil must also be loose, fertile and well-permeable. When inserting, you should first use a wooden stick to poke a hole in the soil surface. It doesn't need to be too deep, as long as the cutting can be inserted 2 cm into the soil. Put the cutting in and carefully compact the soil. After that, water it thoroughly and keep it in a ventilated place. It will survive in about half a month.