Which is more toxic, Pegan or oleander?

The branches and leaves, flowers and fruits of oleander are poisonous, that is, the whole plant is poisonous, to avoid accidental ingestion, the wood of oleander should not be used to burn, the smoke it produces is also toxic, as long as we avoid accidental ingestion, oleander has no harm to us.

Oleander is a fascinating ornamental flower, and its leaves can remain green all year round.

Oleander maintenance essentials:

1. Watering: Although oleander likes water but is afraid of waterlogging, it should be poured into the pot in case of rainy days to prevent rotten roots. If you overwater it, the leaves will turn yellow and scatter, affecting the flowering of the next year.

Watering in the age season should be dry and wet, and it is advisable to connect the potting soil with moisture. Summer is the era of oleander's prosperity and flowering, so it needs more water, so it is advisable to water once a day and every night, and pay attention to spraying branches and leaves frequently, so as to connect the leaves with fresh and green. In mid-October, you should master the watering after entering the room, and avoid the maximum amount of water, otherwise it is easy to rot the roots and remove the leaves, which will affect the development of the next year.

2. Light: oleander likes sunlight, so it needs to be maintained in sufficient sunlight during the development period, otherwise the flowers are less and the color is light.

3. Temperature: oleander should be planted in the leeward and sunny place, indoor anti-freezing in summer, room temperature is not lower than o, the temperature is too high, the loss of nutrition, the development of the second year and the flower is unlucky, and the outdoor temperature is high in summer to keep the soil cold.

4. Fertilization: oleander likes fertilizer, from the room to the flower (frost) can be applied every 20 days with 1 sparse liquid fertilizer. After the beginning of autumn, oleander develops quickly, at this time, you can apply fertilizer and water every 15 days until before entering the room.

5. Pruning: Oleander is usually pruned in four times, one is after the rain in the spring valley, the second is the month, the third is in October, and the fourth is the winter pruning. If you need to plant flowers indoors, move them indoors to the sun for 15 hours.

Stop pruning immediately after flowering, otherwise the flowers will be few and small, and even no flowers will appear. Through the process of pruning, the branches are evenly distributed, the flowers are large and gorgeous, and the tree shape is beautiful.

If you want to propagate oleander, it is also very simple, just cut off a small branch, remove the bottom leaves, cut the bottom obliquely, dip the bottom of the branch in a little rooting powder, cut it in sandy soil, keep the soil moist, the temperature is about 20 degrees, place it in a well-lit and ventilated place, and it will soon take root and sprout.

It likes warm and humid climate, cold tolerance is not strong, and can be planted in the open field in the south of the Yangtze River basin in China, but sometimes the branches and leaves freeze and wither, and the seedlings even freeze to death. In the north, it can only be potted for ornamentation, indoor wintering, and the white-flowered varieties are slightly more cold-resistant than the safflower varieties: oleander is not resistant to water and moisture, and it is required to choose a place with high dryness and good drainage for planting, and it likes light and good fertilizer, and can also adapt to a shady environment, but the flowers planted in the shade are few and the color is light.

The tillering power is strong, and the tree is easy to recover after being damaged.

Distribution. Oleander is native to India, Iran, and Nepal,[1] and is cultivated in all provinces of China, especially in southern China, and is often cultivated in parks, scenic spots, roads, rivers, and lakes. Cultivators north of the Yangtze River must spend the winter in greenhouses. Wild in Iran, India, Nepal; It is now widely planted in tropical regions of the world.

2] Major variants. White-flowered oleander.

White-flowered oleander (newly proposed).

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The flowers are white. The flowering period is almost all year round.

It is cultivated in Yunnan, Guangxi, Guangdong and Hebei provinces and regions in China, and is commonly found in botanical gardens and parks. [2]

Mode of reproduction. Sow.

After the fruit is ripe, it can be sown with picking, and the seedlings can only emerge after 3 months after sowing in the greenhouse, and the seedlings can emerge one after another in the coming year of autumn sowing in the open field. [3]

Layering. In the rainy season, the branches near the surface are cut and pressed into the soil, and after about 2 months of rooting, they can be separated from the mother. [3]

Water plugs. The growing season can be carried out, cut 30-40 cm long branches, split 4 6cm at the lower end with a knife and insert them into a glass container containing water, the temperature in spring and autumn is suitable for 2-3 weeks to grow roots, and the water should be changed frequently in summer, and the waterproof deterioration causes rotten roots. [3]

Cuttage. Try to choose a plot with leeward and sunny direction, no water accumulation, less soil diseases, insects and weeds, sufficient fertility and easy management as the seedbed. Generally, the seedbed should be east-west, and cuttings and seedlings must be carefully prepared no matter which way they are used.

Generally, the depth of cultivated land should reach 25 to 30 cm, the width of the bed should be 1 meter, the length should be appropriate, and the width of the trail should be 50 cm. When the soil is clay, it can be appropriately mixed with sand, and attention should be paid to soil disinfection.

As a mother plant, it must have good quality, robust growth, and no diseases and pests. On the same plant, the cuttings generally choose the sun-facing branches in the middle and upper parts of the year, and the internodes are short, the branches and leaves are thick, and the buds are full. On the same branch, the middle and lower branches are generally selected for hard branch cuttings, the cutting edge should be smooth, the upper end is cut into a horizontal plane, and the lower end is cut into an inclined plane.

When pruning branches, choose stout branches with a diameter of 1 to 2 cm, the length of the cuttings is 15 to 20 cm, the cuttings must have two or three buds, the upper cut is about 1 5 cm from the buds, and the lower leaves are removed. When pruning the branches, the red and white varieties are separated.

Oleander is highly toxic and extremely toxic, and the roots, stems, leaves, flowers, etc. of oleander all contain toxins.

It depends on personal preference, oleander belongs to the shrub; The flowers are perennial herbaceous bulbs nearly spherical; Mandala is a woody annual herb. These three are all poisonous, and it is not recommended to raise them if you have children at home to avoid eating them by mistake.

Because it is a northeasterner, it is not very well known about the growth in the south, and it is easy to raise mandala, oleander and lycoris for the north. Because the mandala is born in the winter and does not care, anyway, it is good to re-sow the seeds the next year. In the north, oleander needs to be moved indoors in winter, and the overwintering temperature is about 10.

Lycoris grows at a temperature of (15-25), prefers acidic soil, and should not be too easy to raise in the north.

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