Free Christian Curriculum Kindergarten through twelfth grade · free to download

Grade 4 · 10 units · 100 lessons · 1,000 questions

Heirloom & Organic Gardening

An elementary introduction to heirloom seeds, soil, and organic gardening, with planting tips for your growing zone.

Elective Self-paced. It is not part of the daily schedule, so it can be taken over a summer, spread across a year, or left out entirely.

One course, offered four ways. Heirloom & Organic Gardening is self-paced, and the same course is listed under Grade 3, Grade 4 and Grade 5 so it can be counted as a credit in whichever year a family takes it. The lessons are identical; take it whenever it suits.

About this course

This elective introduces an elementary student to gardening the old-fashioned way, with heirloom seeds and no chemicals. It begins with the seed itself -- what is packed inside one, what it needs to wake up, and why a bean seed always grows beans -- and then tells the stories behind real heirloom varieties like the Seminole Pumpkin, the Cherokee Purple tomato, and the Kentucky Wonder bean. From there your student learns that dirt is alive: earthworms, beetles, and the tiny creatures that turn dead leaves into food for plants. Later units cover mulch and wood chips as a blanket for the soil, building a compost pile with the right mix of browns and greens, growing zones and frost dates, planting and tending tomatoes, beans, and squash, the bees and butterflies and ladybugs that do so much of the work, how a flower turns into food, when and how to pick each kind of vegetable, and finally saving seed for next year and sharing the extra with neighbors and the church table. Each lesson opens with a verse from the King James Bible, and the ideas that come back again and again are God's design in a seed, patient work, thankfulness, and generosity.

This course adapts to where you live. The first time your student opens it, the course asks for your USDA plant hardiness zone, listed with familiar cities beside each one so it is easy to choose, and you can change it later. Six of the lessons -- the ones about zones, frost dates, choosing varieties, and planting from heirloom seed -- then show an "In Your Zone" section under the reading that gives the frost dates and planting months for your own region and names the heirloom varieties that have done well there for generations. A student in Minnesota and a student in Florida read the same lesson and get planting advice that actually fits their yard.

The course is 10 units of 10 lessons each, 100 lessons in all, self-paced rather than part of the daily schedule. A lesson is a short reading, usually 150 to 350 words in a few clearly headed sections, followed by a ten-question multiple-choice quiz that grades itself. The writing is aimed at a confident reader in grades 3 through 5, with plain sentences and terms explained the first time they appear, though a beginning reader may still appreciate having the lesson read aloud. No garden is required to finish the course and pass the quizzes. That said, this is a hands-on subject at heart, and much of it can be done small: seeds started in a cup on a sunny windowsill, a bucket of compost, saved pumpkin and bean seeds drying on a paper towel, worms watched in a corner of the yard. A few square feet of bed or a couple of large pots will turn most of these lessons into something your student can go outside and see. Frost dates, zones, and variety advice assume North America.

What the course covers

What your student will be able to do

Scope and sequence

All 10 units of Heirloom & Organic Gardening for Grade 4, in the order they are taught.

Units in this course, in teaching order
UnitCoversLessonsQuestionsJump to lessons
Unit 1God's Garden — Seeds, Growing & Genesis 110100Lessons
Unit 2Meet the Heirlooms — Old Seeds With Great Stories10100Lessons
Unit 3Dirt Is Alive! Soil, Bugs & Worms10100Lessons
Unit 4Wood Chips & Mulch — Tucking Your Garden In10100Lessons
Unit 5Compost — Turning Scraps Into Treasure10100Lessons
Unit 6Sun, Rain & Your Zone — What Grows Where You Live10100Lessons
Unit 7Growing Tomatoes, Beans & Squash the Heirloom Way10100Lessons
Unit 8Garden Helpers — Bees, Butterflies & Good Bugs10100Lessons
Unit 9From Flower to Fruit — Harvest Time!10100Lessons
Unit 10Sharing the Harvest — Seeds, Neighbors & the Church Table10100Lessons

Inside the course

These photographs appear in the lessons themselves, not just on this page. Every one is freely licensed and credited to its photographer at the foot of this page.

Maize germination in the absence of soil.
Maize seeds germinationTheMbgold (MBart) / Wikimedia Commons / CC BY-SA 4.0
A ripe Seminole pumpkin placed on a wood surface, as viewed above and slightly skew
Seminole pumpkin fruitCreative Commons / Wikimedia Commons / CC BY 3.0
This shows a result of bokashi soil improvement. Fermented bokashi preserve was added to this 'garden soil factory' a few weeks earlier and has been consumed by the soil food web. In the photo, three indigenous species of worm are enthusiastically dealing with some remains. The texture of the soil has begun to take on the character of vermicompost.
Worms in soil factoryMalcolm Fowles / Wikimedia Commons / CC BY-SA 4.0
Shows tomato plants supported by strings running between wooden stakes using the San Diego weave agricultural technique. Demonstrates proper staking with wooden posts and sisal twine to keep fruit off ground. High-quality agricultural photo showing mature staked tomatoes. Licensed CC BY 2.0.
Tomato Support (5843173257)Creative Commons / Wikimedia Commons / CC BY 2.0

Every lesson, by title

All 100 lesson titles are listed here — nothing is withheld until you download. Open a unit to read its contents.

Unit 1: God's Garden — Seeds, Growing & Genesis 1 10 lessons
  1. 1Seeds Are God's Gift10 q
  2. 2What Does a Seed Need to Grow?10 q
  3. 3All Heirlooms Tell Stories10 q
  4. 4Planting Your First Seeds10 q
  5. 5From Sprout to Seedling10 q
  6. 6The Garden Is God's Workplace10 q
  7. 7Weeds Aren't Enemies—They're Teachers10 q
  8. 8We Need Bugs! (And How to Help Them)10 q
  9. 9Compost: Turning Yesterday Into Tomorrow10 q
  10. 10From Harvest to Next Year's Seeds10 q
Unit 2: Meet the Heirlooms — Old Seeds With Great Stories 10 lessons
  1. 1What Is an Heirloom?10 q
  2. 2The Seminole Pumpkin — A Gift from the Everglades10 q
  3. 3The Cherokee Purple Tomato — A Lost Treasure Found10 q
  4. 4The Kentucky Wonder Bean — A Climber's Gift10 q
  5. 5Why Do Gardeners Save Seeds? The Reasons That Matter10 q
  6. 6How to Save Pumpkin Seeds — Your First Seed-Saving Project10 q
  7. 7How to Save Bean Seeds — Let Nature Do the Work10 q
  8. 8How to Save Tomato Seeds — A Tiny Fermentation Project10 q
  9. 9Growing Your Garden from Seeds You Saved10 q
  10. 10Plan Your Own Heirloom Garden10 q
Unit 3: Dirt Is Alive! Soil, Bugs & Worms 10 lessons
  1. 1What Lives in Dirt?10 q
  2. 2Earthworms: The Garden's Best Friends10 q
  3. 3Other Good Bugs in Your Garden10 q
  4. 4Making Compost: Feeding Your Soil10 q
  5. 5Layers of Life Underground10 q
  6. 6How Worms Help Plants Grow10 q
  7. 7Building Better Soil with No Chemicals10 q
  8. 8Making Worm Castings10 q
  9. 9The Underground Food Web10 q
  10. 10Caring for Your Soil Community10 q
Unit 4: Wood Chips & Mulch — Tucking Your Garden In 10 lessons
  1. 1What Is Mulch? Your Garden's Cozy Blanket10 q
  2. 2Wood Chips — The Garden's Best Friend10 q
  3. 3No-Till Gardening: Layering Your Way to Healthy Soil10 q
  4. 4Mulch Magic: How Wood Chips Defeat Weeds10 q
  5. 5Mulch as a Sponge: Keeping Water Where It Belongs10 q
  6. 6What Happens Under the Mulch: Little Workers Everywhere10 q
  7. 7Applying Mulch Like a Pro: Depth, Distance, and Timing10 q
  8. 8Mulch and Our Heirloom Friends: Growing the Old-Fashioned Way10 q
  9. 9Straw, Leaves, and Grass Clippings: Other Mulches You Can Use10 q
  10. 10Mulch Through the Seasons: A Year-Long Care Plan10 q
Unit 5: Compost — Turning Scraps Into Treasure 10 lessons
  1. 1What Is Compost?10 q
  2. 2Brown vs. Green: Understanding the Recipe10 q
  3. 3Building Your First Compost Pile10 q
  4. 4Layering and Watering: The Right Mix10 q
  5. 5What Breaks Down (And What Doesn't)10 q
  6. 6Meet the Tiny Helpers: Microbes and Insects10 q
  7. 7How to Turn and Aerate Your Pile10 q
  8. 8Signs of Progress: From Scraps to Treasure10 q
  9. 9Black Gold Finished Compost: Using Your Treasure10 q
  10. 10Compost in the Garden: Better Soil, Better Harvests10 q
Unit 6: Sun, Rain & Your Zone — What Grows Where You Live 10 lessons
  1. 1Your Garden's Safe Season10 q
  2. 2Meet Your Growing Zone10 q
  3. 3Heirlooms That Love Your Home10 q
  4. 4Knowing Your Frost Dates10 q
  5. 5Tomatoes Coast to Coast10 q
  6. 6Beans and Peas for Every Place10 q
  7. 7Cool Crops and Warm Crops10 q
  8. 8Planning a Year-Round Garden10 q
  9. 9When to Start Seeds, When to Wait10 q
  10. 10Stewardship Across All Seasons10 q
Unit 7: Growing Tomatoes, Beans & Squash the Heirloom Way 10 lessons
  1. 1Why Heirloom Seeds Matter10 q
  2. 2Preparing Your Garden Bed the No-Till Way10 q
  3. 3Starting Tomato Seeds Indoors10 q
  4. 4Transplanting Seedlings & Hardening Off10 q
  5. 5Planting Beans: The Nitrogen Fixers10 q
  6. 6Planting Squash & Companion Planting Tricks10 q
  7. 7Water, Mulch & Organic Care10 q
  8. 8Spotting Problems: Pests the Organic Way10 q
  9. 9Supporting Your Tomatoes & Training Beans10 q
  10. 10Harvest Time & Saving Seeds for Next Year10 q
Unit 8: Garden Helpers — Bees, Butterflies & Good Bugs 10 lessons
  1. 1Why Pollinators Matter to Your Garden10 q
  2. 2Honeybees—Workers of the Garden10 q
  3. 3Bumble Bees and Other Native Bees10 q
  4. 4Butterflies and Moths as Pollinators10 q
  5. 5Ladybugs and Other Beneficial Beetles10 q
  6. 6Spiders and Hidden Garden Helpers10 q
  7. 7Planting to Attract Pollinators10 q
  8. 8Protecting Good Bugs—No Chemical Sprays10 q
  9. 9Building Homes for Garden Helpers10 q
  10. 10Watching Your Garden Helpers10 q
Unit 9: From Flower to Fruit — Harvest Time! 10 lessons
  1. 1The Flower's Secret – How Flowers Become Food10 q
  2. 2Male & Female Parts – What Flowers Need to Make Fruit10 q
  3. 3Pollinator Friends – Bees, Butterflies & More10 q
  4. 4When Is It Ready? — Learning to Know Harvest Time10 q
  5. 5Harvesting Tomatoes & Peppers – The Joy of Picking Red10 q
  6. 6Harvesting Leafy Greens & Root Vegetables – Underground Treasures10 q
  7. 7Harvesting Beans, Peas & Cucumbers – Pick Them Young!10 q
  8. 8What If It's Not Quite Ripe? — Ripening & Storage Wisdom10 q
  9. 9Using Your Harvest – From Garden to Table with Thankfulness10 q
  10. 10Planning Next Year's Harvest – Seeds, Timing & Zones10 q
Unit 10: Sharing the Harvest — Seeds, Neighbors & the Church Table 10 lessons
  1. 1Saving Seeds — Why & How10 q
  2. 2The Seed-to-Seed Story10 q
  3. 3Dry Seeds vs. Wet Seeds10 q
  4. 4Storing Seeds for Next Year10 q
  5. 5When Abundance Overflows10 q
  6. 6Sharing with Neighbors10 q
  7. 7The Church Table & Community10 q
  8. 8Gratitude as a Practice10 q
  9. 9Seeds as Gifts10 q
  10. 10Your Harvest Story10 q

One whole lesson, exactly as it comes

This is a real lesson taken from the middle of the course — the teaching text, the practice, the homework, and the first three quiz questions with their answers. It is not a marketing excerpt.

Unit 5: Compost — Turning Scraps Into Treasure · Lesson 1

What Is Compost?

Compost heap on a frosty morning. The rising steam shows that the bacterial action in the compost heap is exothermic.
Compost HeapAndrew Dunn / Wikimedia Commons / CC BY-SA 4.0

What Is Compost? The Garden's Best-Kept Secret

Have you ever wondered where the best, richest soil comes from? Not from a store, not from chemicals, but from your own kitchen scraps and yard leaves? That's compost — and it's pure treasure.

Compost is what happens when you pile up things like food scraps, leaves, grass clippings, and plant trimmings, then let nature do the work. Tiny creatures and little helpers you can't see (and some you can, like earthworms) break all that material down into dark, crumbly, beautiful soil. It's not garbage — it's food for the earth, made from things most people throw away.

Why is compost so special? Because it gives your garden soil what it needs to grow strong plants. Good soil holds water like a sponge, feeds plants slowly and naturally, and keeps roots healthy. When you use compost, you don't need chemical fertilizers. You're giving your garden what it wants the way God designed it to work.

The cool part? You create compost yourself, right in your yard. You're not making something new — you're returning what came from the earth back to the earth, enriched and transformed. That's stewardship at its best.

The first three of this lesson's 10 questions

What is compost made from?

  1. Food scraps, leaves, grass, and plant trimmings
  2. Chemical powders and fertilizers
  3. Only grass clippings
  4. Sand and clay
Show the answer

Answer: Food scraps, leaves, grass, and plant trimmings

Who does most of the work turning compost into soil?

  1. Tiny creatures and helpers you can't always see
  2. The sun only
  3. Rain alone
  4. Farmer chemicals
Show the answer

Answer: Tiny creatures and helpers you can't always see

Why don't we need chemical fertilizers when we use compost?

  1. Compost feeds plants slowly and naturally
  2. Chemical fertilizers don't work
  3. Compost is cheaper
  4. Plants don't like any fertilizer
Show the answer

Answer: Compost feeds plants slowly and naturally

Another 7 questions follow in the lesson itself, each one graded the moment it is answered.

What comes with the download

100 full lessons

Across 10 units, each with objectives, a teaching passage written to be read aloud, guided practice, and homework.

1,000 quiz questions

Graded the instant they are answered, each with the explanation of why that answer is right.

A gradebook that works

Every score kept, a running average maintained, and a breakdown unit by unit — all in the file itself, nothing sent anywhere.

Progress and attendance

Tick lessons off as they are finished, watch the completion bar fill, and mark days present, absent, or excused.

Report card and certificate

Both printable, with your student's name, the grades, and the dates already filled in.

Backup you control

Export every record to a file you keep, and read it back later. A lost browser cache cannot take the year with it.

An answer key

Hidden from the student by default, there for the parent marking the work.

Nothing that phones home

No ads, no affiliate links, no analytics, no fonts fetched from elsewhere. Unplug the network cable and every one of these files still works.

What you will need

Drawn from the materials named across all 100 lessons of this course. Most families already own most of it.

No lesson in this course names a material of its own, so there is nothing to buy before you begin. The Grade 4 supply list gathers what the rest of the year needs.

Download Heirloom & Organic Gardening — Grade 4

Free, and free of everything else. 17 files, 15.0 MB in total. No account, no email address, no payment. What you download carries no advertising, no affiliate links and no tracking of any kind.

Photo credits

Every photograph on this page is used under a free licence, and is credited here as that licence requires. Photographs are part of the curriculum itself, so they travel with the download as well.