What to do when a poinsettia leaves fall? the cause of yellowing of a poinsettia leaf and its solution

The occurrence of yellowing leaves and falling leaves in the process of plant growth is the most sad and worrying thing for breeders, but when we encounter such a thing, we must be calm and calm, and then try to find the cause of plant disease. only in this way can we solve the problem fundamentally and pertinently.

What if a poinsettia loses its leaves?

1. the light is too strong

Poinsettia should not be exposed to strong light in summer. If the sun is too strong and the ventilation is not good, it is easy to lose the leaves of poinsettia due to high temperature drying. In summer, a poinsettia plant should be placed in a well-ventilated place, it is appropriate to maintain a distance of 50 cm between the basin and the basin, and water should be sprayed frequently on the ground to increase air humidity.

2. Overwatering

Poinsettia is afraid of dryness and waterlogging, the basin soil is too wet, the photosynthesis of poinsettia can not be carried out well, resulting in poinsettia malnutrition and fallen leaves. Poinsettia should not be watered too much if it is properly watered. It should be drained in case of heavy rain, or it should be moved indoors before the rain.

3. Too little watering

Poinsettia likes to be wet, if it is too dry and meets the hot sun, it will make poinsettia physiological lack of water, causing poinsettia leaves to curl and a large number of fallen leaves. Poinsettia is watered every 2 days in spring. When the branches and leaves are luxuriant in summer, when the growth is fast, the amount of water should be large, and sufficient water should be provided. 4. The temperature is too low

Poinsettia likes warm, humid, cool climate, not cold-resistant, suitable for growth of 15-20 ℃, winter night to maintain more than 15 ℃, not less than 5 ℃, otherwise poinsettia leaves fall off. Opening a window and blowing a cold wind in winter can also lead to a large number of fallen leaves of poinsettia. Poinsettia should be maintained in a higher and stable environment in winter.

4. Improper fertilization

Poinsettia likes fertilizer, more nitrogen fertilizer is needed in the growing period, and insufficient nitrogen fertilizer will make the lower leaves of poinsettia fall off. In addition to the base fertilizer used in the basin, in the month after picking the heart, apply mellow thin pancake fertilizer and water every 7 days or so, not too much.

The cause of yellowing of poinsettia leaves and its solution

1. The basin soil is too dry

In the breeding of poinsettia, if there is too little watering, or the weather is dry and the light is strong, it is easy to cause the leaves to turn yellow. Basically, this is related to air humidity. In hot summer or autumn, poinsettias need to be placed when there is plenty of sunshine, but it is best to pour enough water, and need to replenish water in time. Spray water to improve air humidity.

2. it is not timely to change the basin.

When cultivating poinsettia, the first planting is generally a relatively small flowerpot, but after a period of time, the plant will grow slowly, grow up a lot, and the branches and leaves are dense. At this time, the small flowerpot can affect the continued growth of poinsettia, and the potted soil loses nutrients, resulting in yellowing of leaves.

Therefore, when cultivating poinsettia, we need to change the basin in time according to its growth status, and we need to loosen the soil frequently, so that nutrients and water can better nourish the roots and avoid soil consolidation.

3. The temperature is too low

When raising poinsettia, you need to pay attention to a temperature, because poinsettia likes a warm climate and is more afraid of cold. Plants are not as easy to freeze as expected, resulting in yellowing leaves. When raising poinsettia in winter, you need a higher temperature, between 15 ℃ and 18 ℃. Generally, it is relatively high in indoor culture. You need to pay attention to avoid cold wind and turn on heating if necessary.

4. Too much watering

Poinsettia leaves yellowing, may be caused by too much watering, too much watering will lead to stagnant water in the basin. At this point, poinsettia roots will be lack of oxygen, and there may be rotten roots, which will cause the leaves to turn yellow. Therefore, in the cultivation of poinsettia, the need for reasonable watering, in the case of ensuring adequate water, to avoid stagnant water. If the phenomenon of rotten roots is found, the rotten roots should be cut off in time to avoid further infection.

5. Lack of light

Poinsettia can be said to be a short-day plant, but during the breeding period, it is best to maintain proper light, not to see the sun for a long time, so that it will lose green and turn yellow easily. Therefore, it is best to put poinsettia in a place with sufficient light for maintenance, which can promote its photosynthesis and is green in leaf color.

The growth habit of poinsettia

Poinsettia is a short-day plant and likes warmth. The most suitable temperature for growth is 18: 25 ℃, 18: 24 ℃ from April to September, 13: 16 ℃ from September to April, and no less than 10 ℃ in winter.

Poinsettia likes a humid environment and is sensitive to water. During the growing period, as long as there is enough water, the leaves are green and the flowers are pure.

Poinsettia likes the sun and has plenty of sunshine during the growing period, which can promote the rapid growth of stems and leaves.

A magenta flower language

1. To banish demons, my heart is burning

We usually think that poinsettia flowers are actually leaves, it is not composed of petals, but by more than 10 bracts formed by a scattered bud, the color is bright red. But it is such a red color, give people a festive, warm feeling, especially in the cold winter, this red color makes people feel as warm as a furnace, the heart can not help but become hot. Poinsettia is the best flower to display at Christmas, like holding hands to congratulate people. This decoration means to remove demons and demons, and my heart is burning.

2. celebrate the whole world and wish a new life together.

In some weddings, poinsettia can also be used as a decoration, jubilant and jubilant. In addition, poinsettia blossoms at the time of New Year's Day and Spring Festival, so it also has the meaning of wishing a new life together.

Planting poinsettia needs to follow the growth habits of poinsettia, so that poinsettia can grow normally and reduce the phenomenon of yellow leaves and withering. Poinsettia is a very positive plant. Planting poinsettia can make us move forward without fear.