Free plant tool
Watering Calculator
Get a suggested soil-check rhythm for your plant based on plant type, pot size, light, season and more — plus an overwatering risk estimate.
Watering Schedule Calculator
Get a check-soil reminder cadence and an overwatering risk score — not a rigid calendar.
Always check soil moisture before watering. Estimates only — calendar watering causes most root-rot issues.
How to use the Watering Calculator
- Choose your plant type — tropical, aroid, succulent, fern or orchid.
- Add your pot size and conditions, such as light and season.
- Get your result: a suggested rhythm for checking the soil, plus a risk estimate for overwatering.
Check first, then water
The calculator tells you how often to check — not a strict watering schedule. Water only when the soil is dry to the right depth for your plant. Our guide to how often to water houseplants explains exactly how.
Related guides
Free plant tools
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