How to raise Dendrobium candidum to bloom
Dendrobium candidum, known as the first of the "Nine Great Fairy Grass in China," requires precise maintenance skills in its flowering process. This article systematically analyzes the flowering secrets of home-grown dendrobium from the four dimensions of temperature, humidity, nutrition and ventilation, and helps you create your own orchid secret realm. Temperature control: The golden rule of temperature difference between day and night is managed by seasonal temperature fluctuations. The optimal growth temperature of Dendrobium candidum is between 18-28℃. During the spring flowering period, a 10℃ temperature difference environment of 25℃ during the day/15℃ at night needs to be maintained. It can be adjusted through indoor and outdoor transfer or sunshade mesh to avoid continuous high temperatures causing bud loss. Winter dormant period protection A low temperature environment of 5-10℃ should be maintained from November to February of the following year to simulate the winter climate of the original habitat and accumulate vernuclides needed for flowering. Northern areas need to move indoors to avoid frost. Moisture management: Artistic air humidity control of dry and wet cycles maintains 60-80% ambient humidity, which can be achieved by spraying in the morning and evening with tray water curtain. Be careful to avoid spraying water during high temperatures at noon to prevent transpiration burns. The water content of the substrate is monitored using a mixed substrate of pine scale + water moss, and watering follows the principle of "seeing dry, seeing wet." Insert bamboo stick test method: Pour through the 2cm inside the substrate when it is dry, and replenish water 2 days after the winter is extended to completely dry. Nutrient supply: Precision fertilization equation The fertilization plan for the growth period applies diluted liquid fertilizer (1500 times) with N-P-K=20- 20-20 every 7 days from March to October, combined with decomposed sheep manure extract once a month. Increase phosphorus and potassium fertilizer application during the bud stage to N-P-K=10-30-20. Trace element supplementation Apply foliar fertilizers containing calcium and magnesium every season to prevent scorched leaf disease. It is recommended to use chelated trace element fertilizer with the concentration controlled at 0.1%-0.2%. Environmental optimization: The air circulation design of the three-dimensional ventilation system adopts the three-dimensional hanging planting method to ensure that the plant spacing is ≥20cm. Install a micro circulation fan to maintain the air flow rate of 0.3-0.5m/s to prevent the spread of (T-J) disease. Coordinated lighting management Receive morning light for 3 hours in spring and autumn, block 70% in summer, and full sunshine in winter. Maintain a 45° tilt angle when using the sunshade mesh to create a diffuse light environment.
Master the four core elements of temperature amplitude control, precise water management, scientific fertilization system, and three-dimensional ventilation design. With the annual maintenance calendar records, you will enjoy the elegant inflorescences of Dendrobium candidum in the spring of the coming year. It is recommended to photograph the growth status every month, establish a personalized maintenance database, and gradually improve the exclusive flowering model.