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Plant Watering Estimator
Overwatering is the number one cause of houseplant death. Use our estimator to get a baseline idea of your plant's watering schedule, and learn how to read your plants' signals.
Plant Watering Estimator
Get a rough estimate of how often you should be watering your plants based on their environment.
Estimated Watering Interval
Every 7 days
Roughly 1-2 times per week
Important Disclaimer:This is strictly an estimate. Never water a plant on a strict schedule without checking the soil first. Stick your finger 1-2 inches into the soil; if it feels dry, it is time to water. Environmental conditions like HVAC drafts and soil mix composition drastically change watering needs.
The Golden Rule of Watering
Never water on a strict schedule. The estimator above provides a baseline, but the only true way to know if your plant needs water is to check the soil moisture.
How to Check Soil Moisture
- The Finger Test: Push your index finger into the soil up to your second knuckle (about 2 inches deep). If it feels dry, water. If it feels moist, wait.
- The Weight Test: Lift the pot after you water it completely, and feel how heavy it is. Lift it again a few days later. You will learn to feel when the pot is light and dry.
- Moisture Meters: While cheap meters can sometimes be unreliable, they are excellent tools for deep, large pots where your finger cannot reach.
Factors That Affect Evaporation
- Pot Material: Terracotta pots are porous and wick moisture away, causing the soil to dry much faster than plastic or glazed ceramic pots.
- Airflow: A plant near an AC vent, fan, or open window will dry out faster due to increased transpiration.
- Soil Composition: Heavy peat-based soils hold moisture for weeks, whereas chunky "Aroid mixes" (bark, perlite, charcoal) dry out in days.