What to do if the leaves of Monstera turn black

1. Drain the accumulated water

Reason: Stagnant water can easily cause the roots of Monstera to rot, causing the leaves to turn black.

Solution: Drain the accumulated water in the basin in time. Then take out the Monstera, wash off the dirt on the roots with water, trim the rotten roots, and apply carbendazim on the wound to avoid bacterial infection. Replant the Monstera into dry potting soil, and be careful to control the water so that the soil is slightly dry.

2. Keep warm in time

Reason: The temperature is too low in winter, causing it to be frostbitten, and the leaves will turn black after frostbite.

Solution: Move the Monstera indoors and ensure that the indoor temperature is no lower than 5℃. If the indoor temperature is too low, you can cover the plants with plastic bags to keep them warm. Remember to take them out for a while every day to allow ventilation.

3. Supplement fertilizer

Cause: Insufficient nutrients cause the Monstera to grow poorly, causing the leaves to turn black.

Solution: Generally in winter, as long as the temperature is kept above 15℃, the plants can grow normally. Therefore, fertilization is still needed at this time. You can choose decomposed cake fertilizer water and water it once every 2-3 weeks. Be careful not to spray on the leaves to avoid corrosion.

4. Enhance lighting

Reason: Although Monstera is suitable for growing in a cool environment, its leaves will develop poorly if it is not exposed to light for a long time.

Solution: Place it in a diffuse light environment. If it is winter, you can place it directly in a sunny place, and in summer you need to provide shade. The lighting time should be as long as possible, which will help improve the plant's resistance and make the leaves green and exposed to light.