Introduction of oleander characteristics and growth habits

Oleander is an evergreen erect large tree. It not only has a high ornamental value, but also has medicinal value. It is also a plant often arranged in the garden. When planting, we should carry out according to growth habits. What are the characteristics of oleander, let's take a look at what the growth habit of oleander is.

Nerium oleander features <br> <br> formerly known as Jia Zi peach should, in some places mistakenly called "oleander." But there are places reserved six decades peach title. The fruit of the peach peach is 10-15cm long and has a slender strip and should belong to the capsule. Results from December to February, Henan has May-September results.

The characteristics of oleander: evergreen erect large shrubs, up to 5 meters, containing water, no hair. Leaves 3-4 round, in the lower part of the branches are opposite, narrow lanceolate, 11-15 cm long, 2-2.5 cm wide, light green underneath; lateral veins flat, dense and parallel. Cymes apex; calyx erect; corolla dark red, fragrant, valvate; subcorolla scaly, apically torn. Capsules rounded, 10-23 cm long, 1.5-2 cm in diam.; seeds with yellow-brown hairs at the tip.

Flowers pink or white, propagated with cuttings and strips. Because its leaves are like bamboo, flowers are like peaches, so they have their names. It has a strong adsorption capacity for dust and dust, and is therefore known as a “green vacuum cleaner”. However, the oleander roots of the oleander are poisonous, and if they eat by mistake, they will be poisoned.

Oleander bitter cold is very poisonous.

Flowers like peaches, leaves like bamboo, three seasons a year, always unbeaten. From spring to summer to autumn, flowers bloom and fall. Facing the spring breeze, braving the heavy rain, standing on the scorching sun, spitting arrogance.

The ancestors of Oleander are small bushes in India, Iran, and Afghanistan. There are many branches on the trunk and branches, and the smallest branchlets are green.

The leaves of oleander grow very interesting. The three leaves form a group that surrounds the branches and grows outward from the same place. The leaves of oleander are long lanceolate, the edges of the leaves are extremely smooth, the main veins on the leaves grow straight from the petiole to the tip of the leaves, and many branches are produced from the main veins, neatly arranged in a horizontal direction.

There is also a thin layer of "wax" on the leaves of oleander. This layer of wax can keep water and heat for the leaves, so that the plants can withstand the cold. Therefore, oleander is not afraid of cold, and in the winter, the green posture does not change.

The flowers of oleander have aroma. The flowers grow at the top of the branches, and they gather together like an open umbrella. The shape of oleander flowers is like a funnel. The petals overlap each other. There are three kinds of red, yellow and white. Among them, red is its natural color. "White" and "yellow" are new varieties created by artificial long-term cultivation.

The growth habit of oleander:

Oleander is native to Iran, hi-light, warm and humid climate, not cold-resistant; drought-tolerant, not strict on soil, can also grow on alkaline soil. It is now widely distributed in tropical and subtropical regions; it is cultivated in all provinces and regions of China. The bark fiber is an excellent blending material, and can also be used as a cardiotonic agent; the root and bark contain cardiotonic and quinone crystal materials and a small amount of essential oil; stems and leaves can be used as insecticides, and their stems, leaves and flowers are poisonous, and they are secreted. The milky white juice contains a toxic substance called oleandrin, which can be poisoned by eating.

The bark fiber is an excellent blending material; the leaves and stems are highly toxic, and should be used with caution when used in decoction or powder. Can be strong diuretic, asthma and analgesia. Try on heart failure, wheezing cough, epilepsy, bruises, swelling and so on. It can also make insecticides, which can be fatal if eaten by humans and animals. This species is highly resistant to toxic gases such as sulfur dioxide and chlorine.

Through the above introduction, we now know what the characteristics of oleander are, and also know what the oleander growth habits are. Management is particularly important when planting, we can manage according to the growth habits.

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