Course 04
Watering and Soil Literacy
Watering is the single skill that makes or breaks a houseplant relationship, and yet almost everyone learns it backwards, from a calendar instead of from the plant. This course teaches you to read soil, pot, light, and season together, so that 'how often' stops being a question you need a rule for and becomes a question you can answer yourself, every time, with confidence instead of guesswork.
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6 modules · about 55 min · 3 downloads
Free account — lessons, quizzes and your progress are saved to you.
What you'll be able to do
- Explain why a fixed watering schedule fails and what actually drives dry-down speed
- Check soil moisture reliably with the finger test, pot weight, a skewer, and a moisture meter — and know each one's limits
- Read a dry-down curve in the app's history and notice when it's shifting with the seasons
- Understand how water actually moves through a pot, including the perched water table, and why watering until it drains matters
- Recognize salt buildup from tap water and know when and how to flush it out
- Tell overwatering and underwatering apart with more confidence, and respond calmly instead of panicking
Modules
Why There Is No Watering Schedule
Conditions decide dry-down time, not the calendar.
The Finger Test and Pot Weight
Simple, reliable ways to check moisture before you water.
Dry-Down Curves
Reading your plant's own history to predict what's next.
Drainage and How Water Moves
Why holes, saucers, and 'water until it drains' actually matter.
Water Quality and Salt Buildup
Tap water, sensitive plants, and the white crust on your soil.
Reading the Plant After Watering
Telling overwatering and underwatering apart without panic.
Downloads
Printable charts and cards for the fridge, the potting bench, or your phone.
Moisture Check Cheat Sheet
A one-page comparison of the finger test, pot weight, skewer test, and moisture meters, with the strengths and limits of each.
Dry-Down Tracking Log
A printable log for recording soil checks and pot weight over a few cycles, so you can build your own dry-down curve by hand alongside the app.
Overwatering vs Underwatering Comparison Card
A side-by-side card of overlapping and distinguishing symptoms, plus a simple root-check guide for when the soil clues aren't enough.