Culture methods and matters needing attention of oleander

Flowers have the functions of beautifying, incense and purifying the environment. A few pots of flowers and plants in the living room can not only decorate the room and watch the beauty of the flowers, but also effectively purify the air in the room, keep the air fresh and natural, and benefit physical and mental health. But if you do not pay attention to the various taboos of growing flowers in the room, it will be harmful to your health. It should be noted that oleander is a poisonous plant, which is generally planted in courtyards, roadsides and other places, as well as indoors, but it is dangerous to human health, so we should pay attention to it.

In the season of few flowers in summer, oleander blossoms for nearly 4 months, which is a rare summer flowering tree species, which can be planted in the left and right sides of buildings, parks, green spaces, roadsides, poolsides and other areas, and is more suitable for anti-pollution planting in industrial and mining areas and along the railway. Its stems and leaves are poisonous and should be paid attention to when pruning and cutting.

Methods of reproduction:

Cuttings are mainly propagated, and they can also be divided and striped. Cutting can be carried out in both spring and summer. Soak the base of cuttings in clean water for about 10 days, keep them fresh, take root ahead of time after insertion, and the survival rate is also high. The specific method is that the 1-to-2-year-old branches cut in spring are cut into stem segments of 15cm ~ 20cm, about 20 are tied up into a bundle, soaked in clean water, and the water depth is 3 for the stem segment. The water at the same temperature is changed once every two days, and the temperature is controlled at 20 ℃ ~ 25 ℃. When adventitious roots are found in the immersed part, they can be cut. When cutting, you should make holes with bamboo chopsticks in the soil so as not to damage the adventitious roots.

Because of the strong sprouting ability at the base of the old stem of oleander, a large number of twigs are often produced, which can be fully used for softwood cuttings in summer. Select semi-Lignification degree cuttings, retain the top 3 leaflets, insert in the matrix, pay attention to timely shading and water management, the survival rate is also very high. When pressing and reproducing, first cut the buried part or cut it in the ring, bury it in the soil, cut off the mother in about 2 months, and transplant it with soil in the coming year.

Cultivation techniques:

Oleander has strong adaptability, easy cultivation and management, and is relatively extensive no matter in the field or in the pot. In the place where the ground is planted, transplanting should be carried out in spring, and re-cutting should be carried out when transplanting. Pay attention to protection in winter. Branches and leaves are vulnerable to scale insects, so attention should be paid to prevention and control.

Potted oleander requires not only good drainage, but also sufficient fertility. Spring germination needs shaping and pruning, the overgrown branches and slender branches in the plant can be cut from the base, and the dense branches in the inner chamber should also be thinned to make the branches distributed evenly and keep the tree shape plump. After 1 ~ 2 years, the basin was changed once, and the basin should be changed after pruning. Summer is the period of vigorous growth and flowering of oleander, which requires a lot of water. In addition to watering each day in the morning and evening, if the pot soil is too dry, one more spray should be added to prevent the twigs from wilting and affecting the flower life. After September, water should be deducted to inhibit the continued growth of the plant, make the branch tissue mature and increase the accumulation of nutrients in order to survive the winter safely. The overwintering temperature should be maintained at 8 ℃ ~ 10 ℃, which is lower than 0 ℃, that is, the leaves will fall.

Oleander is a fertilizer-loving plant, which should be applied once a month during the growing period in addition to sufficient basal fertilizer.

Maintenance methods:

1. Lighting: oleander likes sunshine, so it should be maintained in a sunny place during the growth period, otherwise the flowers are less and the color is light.

2. Temperature: oleander should be planted in the leeward and sunny place. In winter, people can resist freezing indoors, and the room temperature is not lower than O ℃. The temperature is too high and consumes nutrients, which is disadvantageous to the growth and flowering of the second year. In winter, those with high outdoor temperature can cultivate soil to keep out the cold.

3. Watering: oleander likes water but is afraid of waterlogging. in case of continuous rainy days, stagnant water in the basin should be poured in time to prevent rotting roots. If you water too much, the leaves will fall off one after another, affecting the flowering of the following year. Watering in spring and autumn should be dry and wet, and it is appropriate to keep the basin soil moist. Summer is the period of exuberant growth and flowering of oleander, so it needs a lot of water, so it is appropriate to irrigate the branches and leaves every morning and evening, so as to keep the leaves fresh and green. Enter the house in the middle of October, after entering the room, you should control the watering. Do not have too much water, otherwise it is easy to rot roots and leaves, affecting the growth of the following year.

4. Fertilization: oleander likes fertilizer, and thin liquid fertilizer can be applied every 20 days or so from going out of the room to flower fade (Frosts Descent). Oleander grows rapidly after the Beginning of Autumn, so fertilizer and water can be applied every 15 days or so until before entering the room.

5. Pruning: if oleander is not cut laissez-faire, the plant shape is too large, so it is necessary to arrange the branches or stems when they are cultivated in clumps. Oleander germination is stronger than cutting in the middle of the branch, it can send out most of the branchlets from its incision and affect the plant shape, so it must be cut off at the base of the branch in principle when pruning.

6. Insect pests: Brown spot is an important disease on oleander. At the initial stage of the disease, 1000 times of 50% carbendazim wettable powder or 25% carbendazim wettable powder and 36% methyl thiophanate suspension were sprayed.

Note:

Oleander has strong adaptability, easy cultivation and management, and is relatively extensive no matter in the field or in the pot. Oleander is a fertilizer-loving plant. In addition to applying sufficient basic fertilizer, fertilizer should be applied once a month during the growing period in the place where it is planted on the ground. Transplanting should be carried out in spring, and re-cutting should be carried out when transplanting. Pay attention to protection in winter. Branches and leaves are vulnerable to scale insects, so attention should be paid to prevention and control.

Potted oleander requires not only good drainage, but also sufficient fertility. Spring germination needs shaping and pruning, the overgrown branches and slender branches in the plant can be cut from the base, and the dense branches in the inner chamber should also be thinned to make the branches distributed evenly and keep the tree shape plump. After 1 ~ 2 years, the basin was changed once, and the basin should be changed after pruning.

Summer is the period of exuberant growth and flowering of oleander, which requires a lot of water. In addition to watering once a day in the morning and evening, if the pot soil is too dry, one more spray should be added to prevent the twigs from wilting and affecting the flower life. After September, water should be deducted to inhibit the continued growth of the plant, make the branch tissue mature and increase the accumulation of nutrients in order to survive the winter safely. The overwintering temperature should be maintained at 8-10 degrees, below 0 degrees, that is, the leaves will fall.

Time: 2019-06-01 Click: