How to Grow Dendrobium thyrsiflorum? Detailed Guide to Cultivation Methods and Precautions

Dendrobium thyrsiflorum is a plant grown for its ornamental flowers. The blooms are extremely vivid in color, with faint stripes on the petals, making them very distinctive. Dendrobium thyrsiflorum is currently very popular on the market, and many people like to grow it. But when growing it, there are also many techniques to master.

How to Grow Dendrobium thyrsiflorum

1. Soil: Light, well-drained, airy soil such as peat moss, fern roots, bark chunks and charcoal.

2. Humidity: Growing dendrobium orchids requires high air humidity, and good ventilation is also required.

3. Temperature: Dendrobium orchids like warm, humid and semi-shaded environments and are not cold-tolerant. The optimum growing temperature is 15-28°C

4. Light: The growing site must have sufficient light and maintain ventilation. This is more favorable for the growth and flowering of dendrobium orchids.

Cultivation Methods for Dendrobium thyrsiflorum

1. Pot and soil selection. According to the size of the Dendrobium thyrsiflorum seedlings, choose flower pots of different specifications, but it is not advisable to use a large pot for small seedlings. The relevant planting materials must be soaked in clean water for more than 1 day before use. Place more large tiles or broken bricks at the bottom of the pot, to a depth of about 1/3 of the pot bottom, then place the orchid seedling in the center of the pot, and insert a thin bamboo stick beside it to fix the seedling, then fill in the other cultivation materials, taking care to separate the roots with material.

2. Water and fertilizer management. At the initial stage of planting, first place it in a cool place with scattered light, and only spray some water on the leaf surface; do not water into the pot. After about 10-15 days, once new roots have sprouted, move it under a shade shed for care. During the vigorous growth period, water once a day. In dry seasons and hot summers, frequently spray water on the ground around the flower pot to maintain relatively high air humidity, and pay attention to good ventilation. During the winter dormant period, water less; if the air humidity becomes too low later on, water frequently to maintain moisture. Since dendrobium orchids have aerial roots, an appropriate foliar fertilizer should be sprayed as a nutrient solution. For the foliar fertilizer, you can choose potassium nitrate, monopotassium phosphate, etc., as well as imported NPK compound fertilizer and diluted MS medium, etc. Generally, one week after transplanting, once the plant has developed new roots, begin spraying one-thousandth potassium nitrate or monopotassium phosphate, once every 7-10 days, for 3 consecutive sprays. After new shoots grow, spray 3‰ NPK compound fertilizer, etc., every 10-15 days.

Precautions for Dendrobium thyrsiflorum

The canopy density of the growing site of Dendrobium thyrsiflorum is about 60%, so the host trees should be pruned regularly to avoid excessive shading or insufficient canopy density. Every year before spring, when new growth starts, in combination with harvesting old stems, cut off the dead stems within the clump, and remove diseased stems, weak stems and diseased roots. After 6-8 years of planting, depending on the growth of the clump, turn over the clump and divide it again for propagation.

Common Pests and Diseases of Dendrobium thyrsiflorum and Their Control Methods

1. Fiorinia scale. Control method: focus on prevention, select healthy plants for propagation. Secondly, because scale insects mostly occur when conditions are too wet and ventilation is poor, daily management should pay special attention to environmental ventilation and avoid excessive humidity. Once a small number of scale insects appear, use a soft brush to gently remove the insects, then rinse clean with water. When the nymphs have just hatched and have not yet formed a waxy shell, use 40% dimethoate emulsifiable concentrate or 80% dichlorvos emulsifiable concentrate at 800-1000 times dilution for control. In early spring and early winter, lime sulfur mixture can be used for control.

2. Black spot disease. Control method: for severe symptoms, the diseased leaves can be pruned off manually. Chemical control: use 1:1:150 Bordeaux mixture or 1000 times diluted carbendazim to prevent and control its development.

3. Sooty mold. Control method: spray 1-2 times with 50% carbendazim at 1000 times dilution or 40% dimethoate emulsifiable concentrate at 1500 times dilution for control.

The cultivation methods for Dendrobium thyrsiflorum can start from its growth habits. When growing it, you must do a good job with the soil ratio and pot selection. In the later stages of cultivation, management needs to be strengthened, and the amount of fertilizer and water must be well controlled. Only in this way can its growth be ensured.