Sunflower is a kind of light loving plant. It has a great demand for light. It's best to keep it outdoors. If it's kept at home, it can be placed on the balcony. The light can be maintained, which can help maintain the demand for growth, help the roots to tie tightly, make the stems and branches strong and beneficial, and also avoid overgrowth. The ventilation condition is good, which is also helpful for growth. However, if it is kept indoors, it may breed pests, which requires more attention to protection and timely treatment after discovery. And don't keep it indoors all the time. If conditions permit, you can move to the outdoor environment regularly.
1. Pot soil: the selection of flowerpots should be larger, which can ensure the growth and extension of roots. There is not too high requirement for soil. The humus soil with good drainage needs to be added with base fertilizer to ensure good nutrition.
2. Temperature: in the growth environment, the temperature should be maintained at about 21-27 ℃, which is conducive to growth. And can keep a certain temperature difference properly, prevent the stem and leaf part from growing in vain.
3. Water and fertilizer: the application of water and fertilizer is an important factor for growth. If there is lack of water for a long time, it will cause the plant to wither. Water can be given every 1-2 days during the growth period. The specific water quantity and frequency should be determined according to the situation. Fertilizer also needs to be applied regularly, the concentration should not be too high