How often should I water my indoor hydrangea?

The Magical hydrangea does not like to dry out, so make sure that the soil stays moist. Immerse the hydrangea regularly (once a week) for an extra treat. Don't overwater the plant, as the roots may die if there is water remaining in the pot or dish. The flowers and leaves of your hydrangea will start to hang limply. Another tip: make sure you keep the flowers dry when watering.