Why are the leaves of Monstera turning black? How to solve it

1. Suffering from frost damage

Reason: The main reason why Monstera leaves turn black is frost damage. It likes a warm growing environment and cannot withstand the cold climate in winter. Once the temperature is very low, Monstera will find it difficult to adapt, and large areas of black-brown spots will appear on the leaves. If it is not controlled, it will lead to the death of the entire plant.

Solution: If you find signs of frostbite on your Monstera, you need to take immediate action to prevent the disease from spreading to the entire plant. Cut off the rotten parts in time to ensure that the cut surface is completely white. Move the Monstera to a warm room, control watering, keep the soil in the pot dry, do not fertilize it yet, and wait for a while for it to recover on its own.

2. Waterlogging and root rot

Reason: If you water the Monstera too much during maintenance, a large amount of water will accumulate at the roots, which will cause it to rot later, affecting its normal transport function and causing the leaves to turn yellow and black.

Solution: Pay attention to watering and fertilizing during daily maintenance, control the amount, and never give too much water or fertilizer. Take the plant with rotten roots out of the pot, cut off the rotten roots, apply carbendazim to the cut, and then replant it. Pay attention to controlling water and fertilizer in the later stage.