Wrong watering is the most common cause of orchid leaves turning yellow.
1. Water the orchid only in the morning.
2. The basic rule of watering frequency: once a week in winter and twice a week in summer.
3. Orchids placed in tight pots will be watered a little more often than those living in larger pots.
4. Watering isn’t made depending on how wet the substrate from the pot’s surface is. The substrate may still be moist inside. For extra safety, stick a wooden pencil inside the pot. If it feels moist after removal, it means watering should be cancelled.
5. Rainwater is the best because this water contains dust, pollen and other organic substances that maintain plant nutrition. Tap water should be used with caution because it is subject to chemical treatments.
6. Always water your orchids with room temperature water. Even if the effects are not immediate, watering with cold water causes serious physiological disorders that will ultimately terminate the plant.
7. Don’t water the orchid leaves. If you accidentally water them, remove the water with a paper towel.
8. Always keep the center of the rosette dry. Water stagnation in the middle of the rosette is tantamount to a death sentence. If water somehow gets in there, remove it immediately with a paper towel or with ear sticks.
9. Excessive watering causes yellow leaves, which means the plant is slowly dying. If you notice yellow leaves or rotting roots, stop watering your orchid for several weeks.
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