Culture method of Daphne odorifera in Phnom Penh

Phnom Penh Daphne, also known as sleeping incense, dew nail, amorous tree, Penglai flower, etc., is an evergreen shrub of the Daphne family. The leaves are yellowish at the edge and green in the middle. They are famous for their "color, fragrance, posture and rhyme", leaving behind the singing of "peony flowers. Phnom Penh is the best". Let's take a look at the cultivation method of Phnom Penh.

Growth habits of Phnom Penh Daphne odora

Phnom Penh Ruixiang sex likes the warm environment, fears the scorching sun, likes the shade, fears the cold. It should be shaded, protected from rain and strong wind in summer, and kept indoors in sunny and sheltered places in winter to maintain a room temperature of more than 8 ℃. Keep the leaves clean and keep the basin soil dry or too wet. Don't get cold, don't let there be soot and soot in the room. Like loose, fertile, well-drained acid soil (pH value 6 to 6. 5), avoid alkaline soil, use mountain mud or pastoral soil mixed with 40% peat soil, rotten leaf soil, pine needle soil and appropriate amount of coal ball ash, rice husk ash, municipal garbage and so on as culture soil.

Propagation method of Phnom Penh Daphne odora

Phnom Penh Daphne is commonly used for cutting propagation. In spring, take the top 8 cm to 10 cm of last year's branches, leave 2 to 3 leaves at the top, dip them in rooting powder, cut them in the cutting substrate, insert the cuttings with a depth of 1 beat 2 to 2 times 3, water thoroughly, and keep the cutting substrate moist and dry, rooting in about 20 days. In summer, the young twigs were cut in the same year, and the insertion depth was about 1 × 2 of that of the cuttings. After cutting, the cuttings were watered thoroughly, and the cuttings were kept moist and dry, but the leaves should be sprinkled frequently until they took root. In addition, it can also be grafted and propagated under high pressure in spring, summer and autumn.

Culture method of Daphne odorifera in Phnom Penh

1. Soil: potted Phnom Penh Daphne, pot soil should be fertile and loose, rich in humus with acid rotten leaf soil, mixed with appropriate amount of river sand and mature cake fertilizer. Ruixiang prefers loose, fertile and well-drained acidic soil (pH value 6 to 6. 5). Avoid alkaline soil. Mountain mud or pastoral soil can be mixed with 40% peat soil, rotten leaf soil, pine needle soil and appropriate amount of coal ball ash, rice husk ash, municipal garbage and so on.

2, watering: Phnom Penh Ruixiang root is fleshy, usually maintenance and management should pay special attention to control watering, such as too much watering, basin soil is too wet for a long time, easy to cause rotten roots. After the rain, the stagnant water in the basin must be poured out in time. After Frosts Descent, the water content of the basin soil should be controlled at about 45% in order to survive the winter safely.

3. Sunshine: although Daphne odorifera in Phnom Penh prefers semi-shade, it avoids exposure to the scorching sun. But winter and spring should be placed in a sunny environment, such as sufficient light and appropriate fertilizer effect during the growth period, which can make Ye Dai, flowers and flowers strong, put in a well-ventilated shady place in summer and spray water to cool down when it is hot. Ruixiang bonsai should be placed in a warm, humid, half-yin and half-yang place. Summer should avoid sun exposure, winter should be placed in the light, air circulation under the south window.

4, temperature: Phnom Penh Daphne is afraid of high temperature and heat, it stops growing when the temperature exceeds 25 ℃, and it should spray water to cool down in summer. Not cold-resistant, after Frosts Descent must be moved indoors, put in a sunny place, room temperature above 5 ℃ before overwintering.

5. Fertilization: adequate base fertilizer should be applied in winter. It is necessary to apply 2-3 times mature cake fertilizer and water in spring, and the fertilizer and water should not be thick. Stop applying in summer so as not to burn the roots. Apply thin fertilizer frequently in autumn until the buds bloom. Fertilizer and water dominated by nitrogen and potassium are applied in spring, and phosphorus is mainly applied after autumn. After bud formation, branches and leaves can be sprayed with 0.1-0.2% potassium dihydrogen phosphate to fertilize outside the roots, but fertilizer and water must be sprayed on the back of leaves to improve fertilizer efficiency and promote flowers and leaves to flourish.

6. Insect pests: the main pests that harm Phnom Penh Daphne are aphids and shell insects, which mostly appear in the dry and hot climate and should be controlled as soon as possible. The disease is mainly caused by virus mosaic disease, infected plant leaves appear color spots and deformities, poor flowering and growth stagnation, should be found to root out and burn with fire.

7. Pruning: Phnom Penh Daphne has numerous branches and strong germination, and Daphne odora is more resistant to pruning. Generally, the dense twigs can be pruned before germination, leaving a certain gap for ventilation and light. Daphne should be pruned after flowering, cut short the flowering branches, and cut off the overgrown branches, overlapping branches, overdense branches, cross branches and other branches that affect the beauty of the tree, so as to maintain a beautiful shape.

What if the leaves of Daphne odorifera turn yellow in Phnom Penh?

1. Soil alkalinity.

[reason] potted Phnom Penh Daphne should use fertile and loose, humus-rich and acidic rotten leaf soil. If the selected soil is alkaline, it will cause the leaves of Phnom Penh to yellowing and fall.

[methods] change the basin soil or apply ferrous sulfate solution to ensure the acidity of the soil.

2. The sun is too strong

[reason] Daphne odora in Phnom Penh is afraid of the hot sun in summer, so it should be placed on a cool and ventilated flower rack in summer, or in a place where there is no direct sunlight, the sun shines too hard or causes the leaves to turn yellow.

[methods] Phnom Penh Daphne was cultured in a place with sufficient astigmatism.

3. The temperature is too low

[reason] Phnom Penh Daphne has poor cold resistance. If the temperature is too low, the leaves will turn yellow and fall, and the plants will also be damaged by freezing.

[methods] the potted plants of Daphne odorifera L. in Phnom Penh should be moved into the room before Frosts Descent, and the room temperature should be kept at least 5 ℃.