Site guide
What is on plantgrail.com?
PlantGrail is an iPhone app that tells you what is wrong with a houseplant from one photo, answers follow-up questions and tracks recovery. plantgrail.com is its companion site: written houseplant care guides, diagnosis pages and a free web symptom checker.
The iPhone app
- PlantGrail app : What the app does, free scans, pricing and screenshots
- PlantGrail on the App Store : Download for iPhone
Core pages
- Home : Care guides, the free symptom checker and the app
- Plant directory : One page per houseplant with care basics and known problems
- Plant problems : Problems grouped by symptom, pest, disease, watering and environment
- Care guides : All English articles
- Symptom checker : Pick a plant to find its written problem guides, no login
- Lexicon : Plant names, scientific names and problem types
- About and methodology : How guides are written, sourced and reviewed
- Contact PlantGrail : [email protected] for corrections, API and editorial questions
PlantGrail developer resources
- PlantGrail OpenAPI specification : OpenAPI 3.1 document for LLM function calling (operationIds, typed parameters, JSON error schemas)
- PlantGrail API documentation : Authentication, endpoints, example requests and rate-limit headers
- PlantGrail developer hub : Public REST API, markdown negotiation and webhook boundaries
- PlantGrail OpenAPI YAML : Same spec in YAML
Care guides
- Monstera deliciosa care : Light, watering, support, repotting and problems
- Snake plant care : Light, watering, repotting and root rot rescue for Dracaena trifasciata
- Pothos care : Light, watering, pruning and common problems for Epipremnum aureum
- Calathea care : Light, water quality, humidity and brown edges
- Philodendron care : Climbing and self-heading types
- Fiddle-leaf fig care : Light, watering, leaf drop and brown spots for Ficus lyrata
- Rubber plant care : Light, watering, leaf drop and propagation for Ficus elastica
- ZZ plant care : Rhizome watering, potting mix, repotting and propagation
- Hoya care : Light, watering, flowering and problems
- Spider plant care : Light, water, brown tips and plantlets
- Alocasia care : Watering, leaf loss, dormancy and corm checks
- Peace lily care : Light, watering, feeding, repotting and problems
- Indoor succulent care : Light, watering, gritty mix, pots, winter rest and propagation
- How to water houseplants : When to water, how much, and wet vs dry wilting
- Houseplant light requirements : Indoor plants grouped by low, medium and bright light
- When to repot : Signs to check and how to repot step by step
- Propagation methods : Stem, leaf, division, offsets and layering
- Seasonal care calendar : What to change each season
Diagnosis and treatment
- Save a dying houseplant : Check roots, water, light, pests and temperature
- Symptom flowchart : Symptoms, likely causes and what to check
- Root rot causes : Pythium, Phytophthora, wet mix and prevention
- Houseplant pests : Identify spider mites, mealybugs, scale and more, then treat from least toxic up
- Neem oil vs insecticidal soap : How each works and which plants they can burn
Comparisons
- LECA vs soil : Water, air, nutrients and salts
- Terracotta vs plastic pots : Drying, weight, salts and which plants suit each
- Pothos vs philodendron : How to tell them apart and how care differs
- Snake plant vs ZZ plant : How to tell them apart and how care differs
- Monstera deliciosa vs adansonii : How to tell them apart and how care differs
Optional
- Courses : Paid care courses
- Newsletter archive : Past issues