Leaf Journal
The plant doctor29

← The greenhouse/Course 2 · Once you're past the basics

The plant doctor

Why it's dying, and exactly what to do about it

Most of us kill a dozen plants before learning that a yellow leaf is a sentence, not a verdict. This is the notebook we wish we'd had.

€495 modules · 29 items6 weeks · ~1.5–2.5 h/week

What you can do by the end

By the end you can diagnose the twelve most common houseplant problems from the symptoms alone, and know the exact, least-toxic fix — without asking the internet.

This is for you if

Something is wrong right now and you are panic-googling yellow leaves at 11pm. This course is the calm version of that search.

Skip it if

If your plants are all thriving and you just want to propagate, this isn't your course (yet).

What's inside

5 modules, each ending in field work you actually do. The full lesson list is in the contents panel — jump in anywhere.

  1. Module 1

    Reading the plant (diagnosis is a skill, not a guess)

    3 lessons · 6 items

  2. Module 2

    The master decision tree

    3 lessons · 6 items

  3. Module 3

    Pests, by lifecycle

    3 lessons · 6 items

  4. Module 4

    Disease & rot (mostly a husbandry story)

    3 lessons · 5 items

  5. Module 5

    Home IPM (a system, not a panic)

    3 lessons · 6 items

The capstone

Diagnose and rescue your worst plant

Put the whole course to work on one real patient: a 30-day documented rescue of your most struggling plant. Baseline it, diagnose it through the tree, build a treatment schedule, log weekly, and report the outcome honestly — recovered, stabilised, or lost, with what you learned either way.