Fertilization method During the growth period, dilute liquid fertilizer combining nitrogen and phosphorus can be applied once every 10 days or so. If the nutrition is insufficient, 1 flower will be difficult to bloom again.
Watering requires you to master the principle of seeing dry and wet at ordinary times. In dry spring and hot summer, you can spray water 1-2 times a day on the branches and leaves, and don't water the basin soil too much. When the room temperature is low in winter, it is necessary to strictly control watering and stop fertilization to prevent root rot. Loosen the soil in time after each fertilization and watering to facilitate ventilation.
Temperature and light require upside down. People like cool climate, and they are most afraid of high temperature, exposure and rain in summer. When the temperature exceeds 30℃ in summer, the metabolic activity of plants is slow, the growth is stagnant, and defoliation and root rot often occur easily. If effective measures are not taken in time, the whole plant will die.
Pest control in indoor cultivation, if there is poor ventilation, it is easy to make young stems and leaves suffer from aphids and whiteflies. When it happens, 200 times solution of omethoate can be sprayed.
The propagation methods of upside-down golden bell are usually cutting and sowing.
(1) Cutting method: It can be carried out all year round except the dormant period in summer, especially in spring, and the rooting survival rate is high and fast. When cutting, select strong shoots with 7-8 cm length and 2-3 nodes, cut off the basal leaves, insert them in a sand bed, spray them frequently for moisture preservation, and they can take root in about 65,438+00 days, and then enter the pot after 65,438+0 months.
(2) Sowing method: It can be carried out in spring and autumn. In autumn, it can germinate at 15-20℃ 15 days. Seedlings sown in spring will not bloom until the next year.
The first summer resort is cooling and humidifying. Family potted plants can be moved to a ventilated and cool place, such as a place where scattered light can be seen under the balcony or eaves in the north, or a cool and ventilated place where sunlight can be seen indoors. At the same time, when the temperature exceeds 25℃, spray water on the leaves 1-2 times a day; when the temperature exceeds 30℃, spray water for 3-4 times, and spray water on the ground around the flowerpot.
Second, it is necessary to control fertilizer and water, stop fertilization in high temperature season from July to August, control watering, and make the soil slightly dry.
Third, it is necessary to prevent rain, which may easily lead to rotten roots and fallen leaves.
Fourthly, cultivate new seedlings. Perennial plants hanging upside down in Admiralty are sensitive to high temperature, but their seedlings are more heat-resistant and will not lose their leaves in hot summer. Therefore, it is a more active measure to cultivate new seedlings by cutting every year.
Plastic pruning because the upside-down golden bell is planted with buds between the axils of new leaves, it needs to be branched in order to make it bloom more. Picking the heart at the right time is an effective measure to make it multi-branched Generally speaking, when the seedlings grow to a height of about 10 cm, 1 coring is carried out to promote their branching. After about 1 month, when the new branches grow 6-8 leaves, the second coring is carried out to remove the redundant buds, and each plant can retain 5-7 branches. After the autumn is cool, you can cut the branches that are too long and thin the branches that are too dense, which can promote the development of strong new branches. After each pruning, water should be reduced, and after new buds grow, the amount of water should be gradually increased to restore normal management.
Generally speaking, the upside-down golden bell can bloom again in about 25 days. People can use this habit to adjust the flowering period and make it bloom continuously.