Watering Frequency Estimator

Free tool, runs in your browser

Nobody can tell you "water every X days" and be right year-round, but you can get a smart starting interval and adjust from there. This tool estimates how often to check the soil, which is the real skill.

Estimates are calibrated for typical indoor conditions and standard potting mix. Extreme humidity, heat, or chunky mixes shift the interval; the finger test always outranks the calendar.