NatureThe BestieIntermediate
Plant Diagnostics and Recovery, a free nature course on Tomo

Plant Diagnostics and Recovery

Like Duolingo, but for Plant Diagnostics and Recovery. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.

For the part of you with thirty open tabs that never became anything.

21 levels across 4 sections, about 42 minutes end to end, roughly 8 days at five minutes a day. It moves through Reading the Leaves, The Root of the Problem, Pests and Pathogens, and Environmental Optimization. It assumes you already know the basics.

21 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Petey the Pruner, the guide who teaches the Plant Diagnostics and Recovery course
Plant Diagnostics and Recovery
with Petey the Pruner
21
Levels
4
Sections
5
Min/day
What you'll learn

Key ideas in Plant Diagnostics and Recovery

  • Overwatering causes edema
  • Low humidity causes leaf tip burn
  • Underwatered leaf texture
  • Salt buildup causes tip burn
  • Distinguishing underwatering and overwatering
  • Identifying leaf tip burn
  • Senescence is the natural aging process where a plant sheds its oldest, lowest leaves to save energy
  • Overwatering causes edema, which appears as raised, corky blisters from cells bursting with excess water
  • Sudden, scattered leaf drop usually follows a drastic change in light or temperature, known as systemic shock
  • Biological diseases often show a yellow 'halo' or ring around a dark, spreading spot
  • Interpreting leaf drop location to differentiate between natural aging and systemic shock
  • Mechanical damage has clean, dry edges that do not spread or change color over time
  • Identifying leaf tip burn as a signal of salt buildup or chronic low humidity
  • Spotting the difference between mechanical damage and biological disease patterns
  • Praying leaves (nyctinasty) can be a defense against excessive light intensity to prevent moisture loss
  • Drooping or 'flopping' leaves indicate a loss of turgor pressure, usually from thirst or root rot
Why not just Google it

You've tried the other tabs

Wikipedia

Thirty open tabs. Four facts you actually kept.

YouTube

You watched. You nodded. By Sunday it was gone.

ChatGPT

One answer, then back to scrolling.

Online courses

Eight weeks. You meant to finish. You didn't.

Tomo gives Plant Diagnostics and Recovery the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.

Try a question

Here's what playing it feels like

A real question from this course. Take your best guess.

Decoding Leaf Texture and Tips

What is a common cause for the very tips of your indoor plant's leaves turning brown and crispy?

Get it right to open this lesson and 20 more in the app.

Course map

Where Plant Diagnostics and Recovery takes you

Move beyond basic watering and learn to read the subtle signals your plants are sending. Master the art of diagnosing pests, nutrient deficiencies, and environmental stress to bring any plant back to health.

  1. 1

    Reading the Leaves

    • The Visual Language of Stress
  2. 2

    The Root of the Problem

    • Below the Surface: Root Health
    • Nutrient Deficiencies and Toxicity
  3. 3

    Pests and Pathogens

    • Identifying and Disrupting Pests
    • Fungal and Bacterial Management
  4. 4

    Environmental Optimization

    • Light and Humidity Microclimates
    • Seasonal Transitions and Dormancy

4 sections · 7 units · 21 levels. Built to play, not to enroll.

How it's taught

You pick the voice

This course
The Bestie

Plant Diagnostics and Recovery is taught in the The Bestie style: your friend who just gets it. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.

Start free

Start Plant Diagnostics and Recovery today.

Download Tomo, search Plant Diagnostics and Recovery, and play your first lesson in under a minute.