Watering: During the seedling growth period, the demand for water is not high. Water every 2 days 1 time to keep the basin moist. During the vigorous growth period, there are many requirements for water, so the basin soil should always be kept moist, especially after flowering, and water should be strengthened, and 1 time every day: 7-8 days is the eye rest period, so it is enough to water less or spray water on the leaves; At the end of summer, water gradually at this temperature to restore the growth of upside-down golden bell.
Fertilization: the principle of fertilization is to apply less; No topdressing is needed at seedling stage, and fertilization is started after the second coring, and thin fertilizer is applied every 15 days, and 0.2% potassium dihydrogen phosphate solution is added at flowering stage. In late spring and early summer, the temperature rises, fertilization is stopped, and fertilization is not applied in summer. When the temperature drops in autumn, the upside-down golden bell resumes growth, and fertilization is normal again. When the temperature is lower than 10℃ in winter, stop fertilization.
Pruning and shaping: coring should be done 2-3 times at seedling stage: 1 time should be done at 3 pairs of leaves, leaving 2 pairs of leaves for coring, which can promote branching; About 4 weeks after the first coring 1 time, when the new branches grow 6-8 leaves, the second coring is carried out to remove the redundant buds and leave 5-7 branches; The flower buds of inverted golden bell are born in the axils of new shoots, so after pinching at seedling stage, pinching should be done every 2-3 weeks during the growth period 1 time. The plants cultivated in this way have many and even branches, lush flowers and plump plant shapes. After coring, the flowering period of inverted golden bell should be adjusted, with less coring times and early flowering; The more times you pinch, the later you bloom; Therefore, planned coring can control the flowering period and keep the plants beautiful; If plants want to grow bigger, they should be plucked again before long summer to promote new branches, and the flowering period will be postponed to early June; After the weather turns cool in autumn, this plant gradually grows sturdily. At this time, the branches that are too long are cut short and the branches that are too dense are thinned to promote the development of strong new branches. For the cut plants, it is necessary to control the water, and only after the new buds grow can they be watered and fertilized normally.
Suitable temperature: the suitable growth temperature is 15-25℃.
Placement environment: potted plants are placed on windowsills, dining tables, desks, coffee tables, flower stands and other places with scattered light when they bloom.
Conclusion: The technique of hanging golden bell on balcony adopts organic fertilizer cultivation technology, and chemical fertilizer, hormone and pesticide are not needed in the cultivation process. The cultivated upside-down golden bell is a kind of green plant, which can not only be viewed, but also be used as a health medicinal material.