If you see that the leaves are about to wilt, you should water them. But you shouldn't wait until this point, because they won't look good by now.
Therefore, you can make it a habit to check on your indoor plants at least once a week to see if they need watering.
The best way to know if a houseplant needs watering is to stick your finger about 1 inch (2.5 cm) into the potting soil and see if it is dry or damp. If it is dry, you can water it immediately; if it is wet, you can wait a day or two and check again.
Since the roots of indoor plants are mostly buried in the soil, you can't just wet the surface of the soil when watering. You should keep pouring water until the excess water drains out of the drainage holes in the bottom of the pot.
If your flower pot is placed on a pad, sometimes the soil in the pot will absorb more water, so after you water for 10 minutes, be sure to drain the water on the pad to prevent the roots of indoor plants from Absorbs too much moisture and rots.
Another method is to pour water into the pad and let the soil in the pot absorb the water through the drainage holes in the bottom. You can keep pouring water until the soil no longer absorbs water. This method is suitable for plants that don't like their stems to get wet, such as cacti, succulents, and viola.
