Is Paphiopedilum easy to grow? A detailed guide to cultivation methods and precautions
Paphiopedilum has bright flower colors and a very attractive shape. It can be enjoyed both for its leaves and its flowers, and has high ornamental value, so many people grow a pot of it at home. Then some people ask, is Paphiopedilum easy to grow? What issues should be noted in cultivation? Below, the editor will introduce its cultivation methods and precautions.
How to grow Paphiopedilum (is it easy to grow)
There are two propagation methods for Paphiopedilum: seed propagation and division propagation, but division propagation is usually used. Division propagation is carried out during the short dormant period after flowering. In cultivation, it also has low soil requirements. As long as there is sufficient water and fertilizer and suitable temperature, it can grow healthily, so in terms of cultivation methods, it is still quite easy to grow.
Paphiopedilum cultivation methods and precautions
1. Cultivation methods
1. Soil: The roots of Paphiopedilum need air permeability, so soil culture is preferable. The substrate is best chosen as well-drained, airy leaf mold plus some expanded vermiculite. It can also be made by mixing leaf mold and decomposed coarse sawdust (peat) at a ratio of 2:1. Note that overly sticky soil must not be used.
2. Temperature: Paphiopedilum likes a warm environment. The winter temperature is best at 10-15°C, and the summer temperature must not be higher than 30°C. When the temperature is about 25°C, Paphiopedilum should receive more sunlight, and the plant should be moved from time to time to help flower bud formation. When the temperature is below 10°C in late autumn, it should be moved indoors in time.
3. Watering: Paphiopedilum likes moisture and cannot tolerate dryness. The potting soil should be kept moist for a long time. Water when it appears slightly dry, watering thoroughly until water flows out of the bottom of the pot, allowing old water and air to be discharged together. Rainwater is best for water quality; tap water must be left to stand for 3-5 days.
4. Fertilizer: During the new shoot growth period of Paphiopedilum, apply a 1000-fold dilute liquid fertilizer of nitrogen, phosphorus, and potassium at 6:5:6:19 once a week. If using granular fertilizer, it can be applied once from March to April.
2. Precautions
1. Pruning: Timely pruning helps its growth.
2. Repotting: Usually repot after flowering and before new roots grow. The most suitable period is when the nighttime temperature is higher than 12-13°C. Repotting does not need to be done every year; about once every two years is enough. Since it has few roots, the roots must never be damaged. When repotting, carefully remove the old growing material with bamboo chopsticks and remove rotten roots.
Common diseases of Paphiopedilum
1. Root rot
After being affected, the plant becomes stunted, cannot flower normally, and most roots and leaves rot, then wither and die. This disease is caused by pathogen-carrying substrate transmission and infection, or by excessive use of chemical fertilizer.
Control method: Disinfect the substrate before planting, and replace diseased soil with disease-free soil. During the growing period, avoid excessive nitrogen fertilizer. When individual diseased plants are found, they should be promptly removed outdoors, and pesticide should be immediately used for spraying. Spray once every 1-2 weeks, and spray continuously about 3-4 times.
2. Southern blight
It mostly occurs on roots, the base of stems, and leaves, causing root and stem rot and soft, rotting leaves. The greenhouse must always be kept ventilated, and the spacing between potted flowers must not be too dense.
Control method: When disease occurs, Lanbing Bizhi can be applied for spraying, once a week, preferably 3-5 times continuously. Contaminated potted flowers should be promptly removed outdoors for destruction.
How Paphiopedilum overwinters
1. Cultivation site: In winter, sunlight is weaker and daylight is shorter, so the originally used shade net can be removed. However, newly built greenhouses have high emission capacity. For safety, one layer of shade net should be used for shading, and 30% shading should be maintained. Indoor sunlight duration is short, so no shading is needed.
Winter nighttime temperatures are low, so it needs to be placed in a greenhouse and kept with air circulation.
2. Watering: Because the flower stem grows longer, the water requirement also increases greatly. At this time, special attention should be paid not to let Paphiopedilum become too dry. In winter, watering is best done before noon. At that time, when the surface of the growing material appears dry, it can be watered.
3. Humidity
Paphiopedilum likes to live in a high-humidity environment. The usual humidity should be maintained at 60%-80% or below. When humidity is insufficient, it will have an adverse effect on its growth and cause the plant to weaken. When humidity is insufficient, water can be applied to the ground, or water can be sprayed on the leaves. Flower buds that have already grown and orchid plants that are flowering do not need fertilization.
It seems that Paphiopedilum is still a relatively easy plant to grow. It has strong adaptability. Especially in winter, as long as it is well cared for, it can still get through the severe cold of winter. However, no matter how strong a plant's adaptability is, pests and diseases still cause great harm to it, so we should pay more attention to the prevention and control of its pests and diseases.