Gardenia leaves turn black in winter

1. Reasons why leaves turn black

1. Root frostbite: Because the temperature is relatively low in winter, the roots of these plants may be frozen, making it impossible for the roots to absorb nutrients from the soil for plant growth, so the leaves of the plants turn black.

2. Improper watering: Giving the plant too much water will have a bad effect on the roots of the plant, and will cause the roots of the plant to rot over time. The roots cannot provide the leaves with the nutrients they need, so the leaves become lifeless and turn black.

2. Solution

1. If the degree of frostbite on the plant is relatively light, you can cut off the blackened leaves and then place the plant in a warm place for maintenance. If the frostbite is severe, you need to dig the plant out of the soil, cut off the frozen roots, branches and leaves, replant it and place it in a warm place.

2. If you find it early, you can place the plant in a place with good air circulation, so that the moisture in the potting soil will evaporate faster, and the plant will slowly return to normal. If many leaves have turned black, dig the plant out of the soil, cut off the rotten roots, disinfect it, and replant it in the prepared soil.