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Garden & Nature

Composting

Turn scraps into black gold. Compost by method, not by luck.

12 lessons4 modules9h 25m durationbeginner level

Instructor: StretchLearn Faculty

About this course

Learn to turn kitchen scraps and yard waste into dark, crumbly compost by mastering the four levers that decide success: carbon-to-nitrogen ratio, moisture, oxygen, and particle size. You will mix browns and greens to a roughly 25 to 30 to 1 ratio, build a hot pile that hits 55 to 65 degrees Celsius, run a low-effort cold pile, diagnose a stinking or slow heap in minutes, and set up a worm bin indoors. By the end you can build, feed, turn, troubleshoot, and harvest compost, and apply it to beds, containers, and lawns without burning your plants.

Curriculum

Module 1: The Science: Browns, Greens, and the C:N Ratio3 lessons
  • What Composting Really IsPreview45m
  • Browns and Greens: The Carbon-to-Nitrogen Ratio🔒50m
  • Moisture, Air, and Particle Size🔒45m
Module 2: Choosing Your System: Bins and Methods3 lessons
  • Hot, Cold, and In-Between Methods🔒50m
  • Choosing and Siting a Bin🔒45m
  • What Goes In and What Stays Out🔒45m
Module 3: Building and Running a Pile3 lessons
  • Layering: Building the Pile Right🔒45m
  • Hot Composting and Cold Composting in Practice🔒50m
  • Reading Temperature and Tracking Progress🔒45m
Module 4: Troubleshooting, Worms, and Using Compost3 lessons
  • Troubleshooting the Four Common Problems🔒50m
  • Vermicomposting: Composting with Worms🔒50m
  • Harvesting and Using Finished Compost🔒45m
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