Evidence-Based Plant Care
Your plant is trying to tell you something. We've figured out what — from 20,000+ real cases.
Diagnose your plant's problem with evidence-based protocols from 20,000+ analyzed cases. 216 plants, 2703 solutions. No guesswork.
From the Knowledge Base
Articles
Rubber Plant Complete Care Guide: Light, Water, and the Two Mistakes That Kill Ficus elastica
The complete Ficus elastica care protocol backed by 62 documented rubber plant cases: exact lux targets, the soak-and-dry watering cycle, the 50/30/20 potting mix, and the root rot rescue protocol.
Chinese Evergreen Care Guide: The Complete Aglaonema Manual for Low-Light Homes (2026)
Chinese Evergreen (Aglaonema) survives light as low as 50 lux — but survival isn't thriving. Our data-backed guide covers the exact light, water, and soil protocol, plus fixes for yellowing leaves and fluoride brown tips.
Money Tree Care Guide (Pachira aquatica): Watering, Light, and Braided-Trunk Rescue
A data-backed Pachira aquatica care protocol: fix yellow leaves, rescue braided trunks from rot and girdling, dial in light, and tell overwatering from drought with real thresholds.
How to Detect Spider Mites on Calathea Before It's Too Late
Velvet leaves hide spider mite damage. Learn 5 early signs, magnification inspection, and the humidity protocol that prevents infestations.
Anthurium Crystallinum Care Guide: Temperature, Watering, and Leaf Maintenance
Complete care guide for Anthurium crystallinum. Learn temperature sensitivity, watering needs, and how to maintain the iconic silver veins on your crystallinum leaves.
The Plant Grail
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We don't guess.
We observe.
Every recommendation on Plant Grail is backed by real case data — observed outcomes, not recycled advice. This is plant care with footnotes.
Every diagnosis links back to real data.
We cross-reference peer-reviewed research with thousands of documented plant cases. When we say "overwatering," we've traced it across the data — not guessed from a blog post.
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Monstera Mastery
Complete care protocols for Monstera Deliciosa and Thai Constellation.
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Propagation mastery and care systems for all Pothos varieties.
View Course →Snake Plant Matrix
The "unkillable" plant's secrets — water, light, and propagation.
View Course →The tools we actually recommend.
Every product hand-picked from our diagnosis data — the soil mixes, treatments, and tools that show up in successful rescues.
Go from guessing to diagnosing.
Structured courses built from our data. Learn to read your plants like a pro — spot issues early, treat them correctly.
Start Learning →Which of the 7 Killers
is threatening your plants?
We analyzed 1,616 documented plant deaths to identify the 7 causes behind 78% of all losses. Answer 5 questions — we'll tell you exactly which ones apply to your setup.
Skip the quiz — get The 7 Killers course ($19) →Question 1 of 5
How do you decide when to water your plants?
Question 2 of 5
Where do most of your plants live?
Question 3 of 5
What's your home environment like?
Question 4 of 5
Have you lost a plant in the last 6 months?
Question 5 of 5
How often do you check your plants for pests?
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Your plants are most at risk from:
The 7 Killers mini-course covers every one of these in depth — mechanism, rescue protocol, prevention. 1,616 cases. 7 lessons. $19.
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The 7 killers behind 78% of houseplant deaths — and the exact fix for each. Free PDF based on 1,616 documented cases.
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