2. Potted soil: Potted soil requires good drainage and ventilation and is rich in humus.
3. Watering: Watering should be controlled according to different seasons. Although winter is the growing season, it should not be too much because of the low temperature. Just keep the soil moist, not too dry. Usually water it once every four or five days. In summer, the temperature is high, although there is shade, the soil in the basin is still easy to dry, and water is usually poured once a day or two.
4. It depends on the weather and the dry and wet conditions of the soil in the basin. If conditions permit in summer, you can often spray some water on the leaves with a fine sprayer, which can not only prevent heatstroke and cool down, but also make the plants grow well. There is a dormant period after flowering, at this time, the basin soil should be kept slightly dry. After dormancy, normal watering management can be carried out when new buds grow at the top of stem nodes.
5. Fertilization: Fertilization is mainly carried out in September 9- 10/0 before flowering and April-June after flowering. Apply 20% decomposed human feces every 7~ 10 days. Fertilization in autumn can be used to differentiate flower buds, mainly phosphate fertilizer; After leaving the house in spring, apply fertilizer once every half month, in order to promote more branches and leaves, mainly nitrogen fertilizer; Fertilization is not suitable for high temperature in summer, otherwise it will easily lead to decay. Stop watering before fertilization and let the soil in the basin dry, which has good effect. Avoid using strong chemical fertilizers.
6. Change the soil every 2 years. During the growth period, it is not advisable to water too much, do not pour it on your head, and do not get wet in the rain, so as not to cause water accumulation, rot and root rot in the wound. In the growing season, except in midsummer, fertilizer and water should be applied once every half month, and more phosphate fertilizer should be applied before the pregnant buds bloom, which is beneficial to the formation of flower buds and bright colors. In summer, the temperature is high and the humidity is high, so fertilization should be stopped, moisture should be controlled, and it should be maintained in the shade.
7. After beginning of autumn, strengthen the management of fertilizer and water, properly place it in sunny places, and promote flower bud differentiation. In winter, the temperature in the greenhouse can be kept above 65438 05℃, which can prolong the flowering period. After flowering, there is a short dormancy period, so it is necessary to cut off the residual flowers, shape them properly, accumulate nutrients, and start fertilizing when the stem nodes grow new buds.
8. Crab claw orchid is a short-day plant. If you want to blossom as soon as possible, you can shade the plants with opaque materials two months in advance, with only 8 hours of light every day, and control the water quantity and soil humidity every day. It will bloom in two months. At flowering stage, topdressing should be stopped, watering should be less, and the temperature should be kept above 15℃ to facilitate plant growth. After the grafted seedlings grow up, they are supported and shaped with brackets.