How to grow orchids, we should pay attention to warming protection in cold season.

Orchid has been respected by people since ancient times in our country. Its form is elegant and elegant, and it has always been a symbol of a gentleman. Orchids are not troublesome to raise and need to be protected against warming in cold weather.

Culture methods of Orchid

1. Soil selection

When planting orchids, it is best to choose neutral and acidic soil rich in humus, loose and fertile, and good drainage. The culture soil mixed with rotten leaf soil, vermiculite and perlite according to a certain proportion can be used to better absorb the nutrients needed for growth and thrive.

2. Fertilization is reasonable

In the formal pot culture, to add an appropriate amount of base fertilizer, and then need to be topdressing according to the situation. Topdressing often uses liquid fertilizer or foliar fertilizer with a lighter concentration to avoid excessive fertilizer damage and burn the roots. In the growing season, about 15% of the rotten thin cake fertilizer and water can be applied every 15 to 20 days, which can make the branches and leaves grow more exuberantly and facilitate flowering.

3. Watering the right amount

Watering orchids should be determined according to air temperature, dry and wet soil, and growth. Water more when the leaves are big and less when the leaves are less. During the growing period of new buds of orchids from June to September, the amount of water should be properly increased. Water should be watered every morning or evening in sunny days, but not in the hot sun. To reduce watering in autumn, you can generally spray some water on the leaves.

4. Lighting conditions

It belongs to semi-negative plants, and most of them are afraid of direct sunlight, so they need to be cultivated in a room with bright light. When it is hot and hot in summer, it is necessary to give proper shade to avoid burning the leaves with too strong light, causing the leaves to yellowing and so on. After October, the weather turns cool, in addition to noon, you can let it bask in the sun, photosynthesis to promote growth.

5. Temperature management

Orchids are sensitive to temperature, and the temperature should not be too high or too low when breeding. Generally, it can grow normally between 5 ℃ and 25 ℃. In winter, if the low temperature is lower than 3 ℃ or so, it needs to be maintained in a warm room to avoid freezing damage. In summer, it should not exceed 30 ℃, otherwise it will accelerate the evaporation of water and make the leaves of the plant yellow and listless.

6. Disease control

The main pests are shell insects and aphids, which can be picked out with sharp utensils. Aphids are small and can be sprayed with soap powder with 500 times water as an insecticide. The disease is root rot disease, this disease will make the root rot, in the maintenance process to often turn the soil, to ensure that there is enough air in the soil, watering attention can not be too much, this can effectively reduce the occurrence of the disease.