What if the leaves of sunflower are black and dry?

Loose-tailed sunflower is an evergreen shrub tropical plant, with a height of up to five meters, a stem diameter of 4 to 5 centimeters, and feathery, straight and drooping leaves. Like warm, humid, semi-shady growth environment, weak cold resistance and other characteristics. If the temperature is below 10 degrees Celsius, it will freeze to death. It originated in Africa and has been introduced to the southern provinces of China in recent years. Because of the high requirements for ambient temperature, only the southern part of China is suitable for its growth. I believe that people who have planted loose-tailed sunflower all know that there will be factors such as blackening and drying of leaves after planting for a period of time. For such a more ornamental evergreen plant, how can this happen? What caused it? This article is for you.

The reason why the leaves of loose-tailed sunflower appear black and dry is to find the reasons from its four key factors, such as watering and fertilization, soil, air, sunlight, etc., as long as we find the relevant reasons in these aspects. in order to better control the problem of black and dry sunflower. The following will give you a detailed introduction to these points.

1. Soil

Loose-tailed sunflower likes a wet environment, so the soil should not be too dry when potted. If it is too dry, water should be replenished in time. On the contrary, the soil in the basin should not be too wet. Too much water will cause the roots to rot and fail to absorb the nutrients they should have, thus causing the leaves to blacken and dry up.

II. Reasonable fertilization

Fertilization must be reasonable, the ratio of fertilizer to water should be uniform, and fertilizers with too high concentration should not be used, which will lead to reverse osmosis of roots and lack of water as a whole and leaves dry and black.

III. Air

Loose-tailed sunflower likes a warm and humid environment, and it should be placed in a humid and ventilated environment. If you find that the air around him is relatively dry, you can spray and disperse water to keep its surrounding environment in a humid state as far as possible, and pay attention to its weak cold resistance. In winter, we should pay attention to adjust its placement according to temperature changes.

Fourth, sunlight exposure

Sunflower is a semi-cool plant, so avoid direct sunlight, so don't expose it to the sun, just put it in the shade.

In fact, loose-tailed sunflower not only has its value for us to watch, but also has certain medicinal value for some diseases. The solution to the blackening of loose-tailed sunflower leaves gives you a detailed explanation from the above four aspects. in flower planting, only by observing, caring, and recording, can we find its law and grow satisfactory and good-looking flowers.