Plants & Garden
Watering calculators for houseplants, lawns, and vegetable gardens.
Most popular in Plants & Garden
Indoor Plant Watering
How much and how often to water houseplants — succulents, tropicals, leafy greens, and flowering pots.
Open calculatorLawn Watering Calculator
Weekly lawn irrigation target based on area, climate, and soil type — with per-session split.
Open calculatorVegetable Garden Water Calculator
Weekly irrigation for vegetable beds — accounts for growth stage, mulch, and climate.
Open calculatorExplore the full library
Spider Plant Water Needs
Watering schedule for a spider plant — soil dryness, pot size, and season adjustments.
OpenAloe Vera Water Needs
Watering schedule for a aloe vera — soil dryness, pot size, and season adjustments.
OpenSucculent Mix Water Needs
Watering schedule for a succulent mix — soil dryness, pot size, and season adjustments.
OpenCactus Desert Water Needs
Watering schedule for a cactus desert — soil dryness, pot size, and season adjustments.
OpenOrchid Water Needs
Watering schedule for a orchid — soil dryness, pot size, and season adjustments.
OpenAfrican Violet Water Needs
Watering schedule for a african violet — soil dryness, pot size, and season adjustments.
OpenFern Boston Water Needs
Watering schedule for a fern boston — soil dryness, pot size, and season adjustments.
OpenBonsai Juniper Water Needs
Watering schedule for a bonsai juniper — soil dryness, pot size, and season adjustments.
OpenTomato Plant Water Needs
Watering schedule for a tomato plant — soil dryness, pot size, and season adjustments.
OpenBasil Herb Water Needs
Watering schedule for a basil herb — soil dryness, pot size, and season adjustments.
OpenRosemary Herb Water Needs
Watering schedule for a rosemary herb — soil dryness, pot size, and season adjustments.
OpenChili Pepper Water Needs
Watering schedule for a chili pepper — soil dryness, pot size, and season adjustments.
OpenSimple, accurate, personalized
Pick your calculator
Choose the one that matches your situation from the grid above.
Enter a few details
Weight, activity, climate, species — takes under 30 seconds.
Get your target
A research-backed daily target plus an hourly schedule.
Learn the science behind plants & garden
Read our in-depth guides for research-backed context on every calculator here.