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Native to tropical rainforests, the Phalaenopsis orchid has become a favorite in recent years. Every holiday, many people plan to buy a few pots to care for at home. The way its flowers bloom resembles butterflies flying in the air, leaving a lasting impression. Apart from its recognizable flowers, the leaves of Phalaenopsis orchids also have unique characteristics and quite a personality!
Why are Phalaenopsis orchid leaves considered to have personality? These green leaves are not just simple—they store water and nutrients, and they also perform photosynthesis and transpiration. First, let’s talk about photosynthesis. When fertilizers are not provided, the leaves can still absorb energy from sunlight and convert it into chemical energy, like the kitchen in a home, preparing an "energy meal" for the plant every day. So, if the care isn’t proper and the leaves droop or are fewer, the plant’s growth will definitely be affected.
Next, the back of the leaf is responsible for respiration and temperature regulation, with many stomata (tiny pores). During the day, these stomata close to prevent the sun’s heat, but at night, when the temperature drops, they slowly open, absorbing carbon dioxide and releasing excess moisture, cooling the plant from the daytime heat. If the leaves are damaged by pests or waterlogging, this function on the back of the leaf can be compromised, affecting the whole plant.
Lastly, let’s talk about the growth pattern of the leaves. It takes about 40 days for a new leaf to grow fully. The lifespan of each leaf is typically 1-2 years, after which it will naturally age and fall off—there’s no need to forcefully remove it.
When caring for the plant at home, how can you tell if the leaves are in "alarm" mode? If the leaves look droopy and lack vitality, it is likely that the roots are thirsty, and you should water the plant by soaking the pot, allowing slow absorption (fill a larger pot with water and place the smaller pot in it, leaving about 10 cm of water). After soaking for about 10 minutes, place the pot in a well-ventilated area. If the leaves are turning yellow, especially from the root up, this might indicate overwatering and root rot. You should quickly trim the damaged parts and repot. If there are spots on the leaves, it is likely due to excessive sunlight or a disease. In this case, move the plant to a shaded area and observe.
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