1. Illumination: If you want sunflowers to bloom more, the most important factor is more illumination. Sunflowers like the sun, and if they lack illumination, the plants will bloom less or even not. Therefore, if you raise sunflowers at home, you must bask in the sun more. Even if it is insolation in summer, you do not have to block it.
2. Temperature: After the sunflower is planted, it can bloom in about one month in the environment of about 20 , but if the maintenance temperature is low, the growth rate of the sunflower will slow down, and the flowering time will be delayed, with late flowering and less flowering.
3. Watering: The sunflower is drought-resistant, but in order to make the plant blossom more, it is best to choose loose and breathable soil for planting, keep the soil moist, observe the soil surface whitening and drying, and water it thoroughly in time to ensure that the plant is not killed by drought in summer insolation.
4. Fertilization: Sunflower does not need too much fertilizer and water, but if you want the plant to blossom more, you can apply thin fertilizer frequently. For example, during the growing period of sunflower, irrigate balanced fertilizer and water of nitrogen, phosphorus and potassium. Before flowering, switch to phosphorus and potassium fertilizer. Irrigate once every half a month, and the concentration should be light.
After the domestic sunflower blossoms, the flowers are very small, mainly for the following reasons.The first is the variety problem, can only accept fate, the second is insufficient light, think of ways to increase light, the third is the maintenance temperature is too low, think of ways to increase temperature, the fourth is lack of nutrition, proper fertilization can be improved.