Why do the leaves of the pitcher plant turn black?

The reason why leaves turn black

As long as you provide the pitcher plant with a good enough growing environment and do everything you can think of, it will grow well. But Nepenthes has very demanding requirements. The leaves may turn black due to incorrect temperature, inappropriate humidity, insufficient light, or even because the pitcher plant has eaten too much! Any slight mistake will affect the appearance of the pitcher plant.

Solution

Watering

Most families use the immersion method to water the pitcher plant, which is to soak the entire pot in water to moisten the soil. This can ensure that the watering is more even and water is not easily accumulated, and it can also solve the problem of insufficient humidity. However, when watering, do not let the water overflow the edge of the flowerpot. When you have time, spray water on the leaves frequently. In winter, you can put a plastic bag on the pot to maintain humidity.

When choosing water quality, try to use soft water. If you are in the north, you can use rainwater, air-conditioning water, and distilled water, which have relatively fewer minerals. If you are in the south, you can just use tap water.

Reasonable temperature control

When the temperature is low, move the pitcher plant indoors for maintenance, and try to control the temperature above 20°C. When the temperature is too low, the pitcher plant will reduce its own leaves in order to keep warm, and even let the cage wither.

Adequate lighting

The sunlight is weak in winter, but you still need to ensure that there is sufficient sunlight. Put it directly in the sun for 2 hours, and use scattered light for the rest of the time. The sun is more poisonous in the summer, so try not to overexert yourself in the sun and receive scattered light throughout the day.

Feed insects properly

In order to reduce the use of fertilizers, many flower lovers actively feed pitcher plants and feed insects into the pitcher plants' cages. There is a major misunderstanding. Pitcher plants do not eat like humans, and cannot be fed with insects as meals. If you feed too many insects, the pitcher plants will gradually wither and the leaves will turn black. Therefore, the amount of insects you feed must be controlled. Generally, you should feed them once every two or three days, and 2 to 3 insects at a time is enough. When feeding insects, reduce the amount of fertilizer.