Watering Calculator
Get a personalized watering schedule based on your plant, pot size, light level, and environment.
What plant are we watering?
Choose from our database of common houseplants
How It Works
Select Your Plant
Choose from 10 common houseplants with verified baseline watering frequencies from our knowledge base.
Configure Environment
Tell us about your pot size, light level, current season, and humidity to fine-tune the calculation.
Get Your Schedule
Receive a personalized watering schedule with specific recommendations and the finger-test method.
The Science Behind the Calculator
Factors We Consider
- Plant Type: Each species has different water storage capabilities
- Pot Size: Larger pots hold more moisture longer
- Light Level: More light = faster transpiration
- Season: Plants need less water during dormancy
- Humidity: Dry air pulls moisture from soil faster
Always Use the Finger Test
Even with a perfect schedule, always check soil moisture before watering. Insert your finger 1-3 inches deep (depending on pot size). If it feels moist, wait. If dry, it's time to water.
This prevents the #1 killer of houseplants: overwatering.
Data Sources
Watering schedules are derived from the Plant Grail Knowledge Base, synthesized from thousands of documented care cases and horticultural research on indoor plant water requirements.