Free Plant Care Tools & Calculators
19 free plant care tools: plant finder, care comparison, problem solver, watering, soil volume, light costs, VPD, calendar export, unit conversion, and more. Keep observations in the private care journal.
Sunlight Compass
Set the window direction and how far the plant sits from the glass; see direct sun, relative brightness and plants that fit the spot.
Open tool →VPD Heatmap
See vapour pressure deficit across temperature and humidity. Hover any cell for its value and compare it with your room.
Open tool →Repotting Planner
Pot size, root-bound signs and growth rate become a 24-month timeline with pot sizes and the soil volume to buy.
Open tool →Leaf Diagnosis Tree
Answer a few questions about yellowing, brown edges, spots or pests to narrow down the cause and the guides to read next.
Open tool →Propagation Tracker
Keep cuttings from cut to callus, roots and potting. Saved in this browser with a stage timeline and JSON export.
Open tool → Practical care toolHouseplant Finder
Find houseplants that fit your light, pet-safety needs, and growing style. Filter 282 plant care records and open complete care guides.
Open tool →Practical care toolCompare Houseplant Care
Compare two houseplants side by side: light, watering checks, humidity, temperature, soil, and recorded pet toxicity from the AI Planter encyclopedia.
Open tool →Practical care toolHouseplant Problem Solver
Work through yellow leaves, drooping, brown tips, or leaf damage using soil moisture and pest observations. Get practical next checks and relevant guides.
Open tool →Practical care toolPotting Soil Volume Calculator
Calculate liters and US quarts of mix for round or tapered pots. Enter inside dimensions, subtract root-ball space, and plan multiple pots.
Open tool →Practical care toolGrow Light Electricity Cost Calculator
Estimate grow-light energy use and running cost from actual watts, daily hours, your electricity rate, and the number of fixtures.
Open tool →Practical care toolHouseplant Humidity & VPD Calculator
Calculate air and leaf vapor pressure deficit from temperature and relative humidity. Explore why warmer rooms dry plants faster, with the formula explained.
Open tool →Practical care toolPlant Care Calendar & Reminder Export
Create a plant-check schedule and download an ICS calendar for Google, Apple, or Outlook. Reminders say to check soil and leaves before watering.
Open tool →Practical care toolPlant Care Unit Converter
Convert pot sizes, watering volumes, temperatures, lux and foot-candles. Clearly distinguishes US and Imperial gallons for plant-care instructions.
Open tool →On this devicePrivate Plant Care Journal
Keep care notes, follow-up dates and portable backups. Record checks without turning them into automatic watering.
Start a journal →Watering Calculator
Answer 4 questions — plant type, pot size, light, season — and get a watering interval tuned to your home.
Calculate →Soil Mix Calculator
Pick a recipe (aroid, succulent, orchid, standard) and a batch size — get exact ingredient volumes.
Mix it →Fertilizer Dilution Calculator
Stop burning roots. Convert any label dose to the exact ml for your watering can.
Dilute →Grow Light DLI & Timer
Turn PPFD and hours into daily light integral, or get the runtime and switch-off time for a target DLI.
Calculate →Pot Size Calculator
Enter your current pot and plant type — get the right next size plus soil volume to buy.
Size up →Pet Toxicity Checker
Search 280+ plants instantly to see what's safe for cats, dogs, and humans.
Check →Plant Identifier
Snap a photo and identify 280+ houseplants on-device — plus disease detection and care plans.
Identify →Why free calculators?
Every calculator runs entirely in your browser — no accounts, no uploads. They pair with our 85 practical guides, the 282-plant encyclopedia, and the Plant Rescue Toolkit printable trackers.