When it comes to gardening, taking care of the green leaves that accompany blooming flowers is just as important to get it "right." A healthy leaf is essential for ensuring that the plant can absorb nutrients from the air and perform photosynthesis effectively, which ultimately supports the blooming process.
How do you take good care of Phalaenopsis orchid leaves? First, it’s important to emphasize that there are many varieties of Phalaenopsis, and each has its unique characteristics, so you should always pay attention to its condition.
Generally, for light requirements, the best spot for your Phalaenopsis is on an east-facing windowsill, where it can receive 2 to 3 hours of morning sunlight, which is ideal because the light during this time is not too harsh. If you have a young Phalaenopsis that hasn’t been acclimated yet (exposed to the sun since a seedling), avoid placing it on a south-facing windowsill, as it can easily get sunburned and develop yellow spots (which is irreversible). If you notice signs of light deficiency, such as leaves becoming darker in color or wilting, you can use a grow light. Make sure the light is positioned about 30 cm away from the leaves and provide 6 hours of light each day.
Next, if you notice dust or water stains accumulating on the leaf surface over time, it can clog the plant’s stomata, hindering its breathing process. It’s recommended to clean the leaves once a month using a mixture of clean water, 2 drops of white vinegar, and 1 drop of vegetable oil. Dampen a soft cloth and gently wipe the leaf surface. Be careful not to wipe the underside of the leaves, as you might damage the stomata. After cleaning, place the plant in a well-ventilated area to allow the water to dry quickly. If the water remains on the leaf base, it may lead to rot in the center.
Lastly, how do you determine when to water and fertilize your Phalaenopsis? First, regarding watering, Phalaenopsis requires a "dry-wet cycle." After watering, wait until the potting medium is completely dry before watering again. You can check by squeezing the potting mix—if it feels loose and there’s no moisture when you touch it, it’s time to water. Overwatering and creating water accumulation in the pot will cause the roots to turn yellow and wilt, which is very difficult to recover from. When watering, follow the principle of gradually increasing the amount (depending on the variety, the amount can range from 20 to 50 ml).
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