Orchids generally need watering about once every 7 to 10 days, or roughly once a week. The key is to water them when their growing medium (such as moss or bark) feels dry rather than keeping it constantly moist, as too much moisture can cause root rot
. Here are some important points to consider for watering orchids:
- Water when the roots or growing medium are dry. Orchid roots look silvery when dry and green when hydrated
- Soaking the orchid in water or thoroughly watering until water drains out the bottom is recommended, but avoid water pooling in the crown of the plant to prevent rot
- Frequency depends on factors like light, temperature, humidity, and time of year. Warmer, brighter, and drier conditions increase water needs; orchids rest more in winter and need less water
- Overwatering is a common mistake that leads to root and crown rot, so it's better to let the orchid dry out somewhat between waterings
- Some growers use ice cubes (about three for a 5-6 inch pot) to provide a measured amount of water slowly, watering once a week or less in winter
In summary, watering your orchid about once a week when the medium is dry, adjusting for environmental conditions, and avoiding overwatering will keep it healthy. Check the roots or medium moisture before watering to decide if your orchid needs water.