The leaves of Acorus calamus turn yellow. Why does calamus turn yellow?

Acorus calamus likes water. General watering does not affect the growth of Acorus calamus. However, if the used cattail basin is bottomless, or the plant material is impermeable, and the water in the basin becomes waterlogged, resulting in lack of oxygen in the soil, then the roots of cattail rot and the leaves of cattail turn yellow. In addition, we should also pay attention to the rainy days in the south. Such weather is rainy and rainy, the air humidity is extremely high, transpiration is reduced, and calamus is prone to yellow leaves. In case of yellow water, first of all, reduce the number and quantity of watering, and put calamus in a ventilated place. If it is a problem with cattail and planting materials, it should be replaced as soon as possible.

Drought and yellow

Generally, we raise calamus for beauty, using small pots, with small space and less planting materials. If the weather is sunny and hot, there will be a drought problem if you don't water it for two or three days. For Acorus calamus, it is fatal. Let you see the yellow-faced woman at once. Drought yellow water should be watered as soon as possible, but at this time, the physiological function of Acorus calamus has not recovered, so it is not easy to water more. Just keep the soil moist and let Acorus calamus adapt gradually.

Dry yellow

Different from dry yellow, dry yellow is caused by low air humidity, which is easy to happen in midsummer or indoors with heating in the north. Due to the low air humidity and strong transpiration, Acorus calamus is easy to burn yellow leaves. Dry yellow should first increase the amount of water, and then consider making pots or sand pots. A brick should be placed at the bottom of the basin, and the calamus basin should be placed on the brick to artificially create a small environment and increase the air humidity. Sand basin is similar. If it is summer, pay attention to the shade, or put calamus in a cool and ventilated place.

Burning yellow

Acorus calamus is a shade-loving plant, which can generally be placed in a place where light is scattered. You can bask in the sun properly in winter and spring, but if you encounter strong direct sunlight, yellow leaves and sharp corners will appear. At this time, pay attention to put it back in a cool and ventilated place.

Alkaline yellow

Acorus calamus likes weak acid growing environment. If the water quality is alkaline, or the basin sits for a long time, the salt and alkali accumulation in the basin soil will naturally turn from green to yellow. Try to use clean water and don't sit for a long time. If the alkali return is serious, it can be neutralized with ferrous sulfate solution, but considering the actual situation, I think it is easier to change the soil and put it directly in the basin.

Frozen yellow

Acorus calamus likes to grow in the environment of 15-25 degrees, and grows slowly below 10 degrees. Below 5 degrees, take back the room or add warm facilities. Some people say that calamus at zero or even below zero is not necessarily good, but why take the risk? For example, last winter, many people's calamus were frozen. In the case of frozen yellow, yellow leaves should be removed as soon as possible and placed in a warm environment to regenerate roots and leaves.