It’s important to water an orchid based on how much water it uses, rather than after a certain number of days. Every few days, gently stick 1 or 2 fingers into the potting medium, then pull them out and rub them together. If you don’t feel any moisture on your fingers, lightly water the orchids by pouring water over the potting medium and allowing it to soak in. After a few minutes, dump out the excess water in the saucer or drip trays below the pots.
Depending on the climate, humidity levels, and potting medium, you may need to water the orchids several times per week to once every several weeks. Clear pots can help you determine when it’s time to water your orchids—if there’s no condensation on the inside of the pots, it’s time to water.