How Often Should You Water Indoor Plants?

Most indoor plants need water when the top inch or two of soil has dried out, which works out to roughly once every one to two weeks for many common houseplants. But there is no universal schedule, so checking the soil beats following the calendar.

Why can’t I just water once a week?

Because how fast soil dries depends on light, temperature, humidity, pot size, pot material, and the plant itself. The same plant can need water every five days in a bright, warm room in July and every three weeks in a cool room in January. A fixed schedule will overwater it part of the year and underwater it the rest.

How do I check if my plant needs water?

Push a finger about an inch or two into the soil. If it feels damp, wait. If it feels dry, water. Lifting the pot also helps: a pot that feels light has usually dried out, while a heavy one still holds water.

How much water should I give?

Water slowly and thoroughly until it runs out of the drainage holes, then empty the saucer. Frequent small sips keep only the top layer wet and encourage shallow roots, while a full soak followed by a proper dry-down is closer to how most plants like to be watered.

Do different plants need different amounts?

Yes. As a rough guide:

• Succulents and cacti: let the soil dry out completely between waterings.
• Snake plants and ZZ plants: let the soil dry out mostly or completely, since they store water.
• Pothos, monstera, and most foliage plants: water when the top inch or two is dry.
• Ferns and peace lilies: prefer soil that stays lightly moist, but not soggy.

What changes how often I water?

Bright light and warm rooms dry soil faster. Winter, low light, and larger pots slow it down. Terracotta pots dry faster than plastic or glazed ceramic because the clay is porous. Plants that are actively growing use more water than those resting for the winter.

If you would rather not track it yourself, Plantorbia’s care reminders adjust for the season instead of staying on a fixed cycle.

Related reading: How to tell overwatering from underwatering, Do houseplants need drainage holes?