How to Grow Haworthia cooperi in a Closed Environment: Detailed Methods and Tips

To grow Haworthia cooperi in a closed environment, simply place a colorless, highly translucent plastic item directly over the plant. You can poke holes for ventilation or leave it without holes, depending on your specific situation. Usually, a plastic cup is placed directly over the growing medium in the pot, so the seal is not particularly tight, which means there is basically no need to open it daily for ventilation. If you use plastic wrap over the pot, cut a large slit in it; when you want to keep it closed, clip the slit shut with small clips, and when you want ventilation, just open the slit. Below, the editor will introduce the precautions for growing Haworthia cooperi in a closed environment!

1. Plants grown in a closed environment must not be placed in direct sunlight, otherwise, because the smaller the greenhouse space, the higher the local temperature will rise, and it will become "braised meat." Safety first; haste makes waste.

2. The timing for closed cultivation can be spring, autumn, or winter. Shading plus cooling can extend the duration of closed cultivation. In spring and autumn, closed cultivation is meant to accelerate growth, and it is generally suitable on cloudy and rainy days at 5-50 degrees. On sunny days, it is recommended to remove the closed cover and let it get more sun, but be careful not to have water droplets on the Haworthia cooperi, otherwise it can easily get sunburned. Haworthia cooperi that has just been watered should not be immediately closed up either; generally, it is better to let it sit overnight or for a whole day until the moisture has decreased slightly. In winter, closed cultivation is to create a small greenhouse effect for Haworthia cooperi. You should observe the situation promptly to prevent mold growth. Do not water too frequently or too much; it is best to just briefly soak the pot.

3. If you like the color variation in Haworthia cooperi caused by large temperature differences, use closed cultivation with caution. This is because Haworthia cooperi is generally grown closed in spring and autumn, which is exactly when the temperature difference is large, and closed cultivation creates a small greenhouse for it, preventing it from producing its colorful appearance under large temperature differences.

4. Plants grown in a closed environment often develop cracks on the leaf windows because of excessive humidity, so when the temperature rises, increase the time the cover is lifted to let the plant gradually adapt. Actually, I have always wanted to see the leaf windows of Haworthia cooperi burst, but this has never happened for me; I have only heard others say it happened for them.

5. During closed cultivation, watering must be well controlled. In a high-temperature, high-humidity environment, it is very easy to cause root rot or leggy growth.

6. Long-term closed cultivation will cause the plant's resistance to decline, so the closed period should start from the beginning of winter and be promptly removed after the temperature rises again the following spring.

7. Closed cultivation makes the air humidity in the local space too high, which easily breeds diseases and scale insects, so you should moderately adjust the local environment and the impact of other management measures according to the plant's condition.

Finally, one thing to remind everyone: for local plants and plants that already grow relatively quickly, it is not necessarily required to use the closed cultivation method. Closed cultivation is only a temporary measure to improve the unattractive shape of Haworthia cooperi, and it does not necessarily apply to all situations.