Tools
Six tools for the questions plants actually raise
How much water, which pot, is it toxic for the cat, why are the leaves yellow. Each tool answers one question with the data from the 503 plant pages — in your browser, without an account.
- Plant journal Track your plants, what you did to them and when to water next.
- Watering calculator How much water, and how often, for your pot and your window.
- Is this plant safe for my pet? Search a plant, or browse the safe and toxic lists, from the ASPCA data.
- Hardiness zone checker Your winter low gives your USDA zone, and the plants that survive it outdoors.
- Repotting calculator Which pot size comes next, and how many litres of mix to buy.
- What's wrong with my plant? Tick what you see, get the likely causes in order.
Why these six
They are the questions I get asked, and the ones the encyclopedia can answer with real data rather than a guess. Each tool says where its numbers come from and what it does not know. Nothing you type is sent anywhere: the calculations run in the page, and the plant journal stays in your browser's local storage.