The 7 Crops Rotation System

Complete Survival Garden Guide

⚠ CRITICAL: Crop rotation prevents soil collapse. Without it, your garden fails within 2-3 years.

The 7 Essential Crops

1. POTATOES

Calories/100 sq ft: 32,000
Growing Days: 65-120
Storage: 4-8 months
Family: Solanaceae
Rotation: 3-4 years minimum

2. DRY BEANS

Calories/100 sq ft: 15,000
Growing Days: 50-100
Storage: Indefinite (dry)
Family: Fabaceae
Special: Nitrogen fixer

3. WINTER SQUASH

Calories/100 sq ft: 11,000
Growing Days: 85-120
Storage: 3-6 months
Family: Cucurbitaceae
Cure Temp: 80°F, 10-14 days

4. FIELD CORN

Calories/100 sq ft: 30,000
Growing Days: 100-120
Storage: Indefinite (dry)
Family: Poaceae
Isolation: 250 ft from sweet corn

5. WHEAT

Calories/100 sq ft: 24,000
Growing Days: 210-240
Storage: Indefinite (dry)
Family: Poaceae
Space Needed: >5,000 sq ft

6. ROOT VEGETABLES

Carrots Storage: 4-6 months
Beets Storage: 3-5 months
Turnips Storage: 4-5 months
Family: Apiaceae/Amaranthaceae
Type: Light feeders

7. CABBAGE

Calories/100 sq ft: 11,000
Growing Days: 60-120
Storage: 3-4 months
Family: Brassicaceae
Rotation: 3 years minimum

Why These 7 Crops?

  • Combined production: 1.4+ million calories from 5,800 sq ft
  • All store without electricity (root cellar or dry storage)
  • Beans fix nitrogen for other crops (free fertilizer)
  • Diverse nutrient profiles prevent deficiency
  • Proven survival crops used for centuries
  • Seeds can be saved for true independence

Quick Reference: Calorie Density

HIGH (>20,000 cal/100 sq ft): Potatoes, Corn, Wheat
MEDIUM (10,000-20,000 cal/100 sq ft): Beans, Squash, Cabbage
LIGHT (Nutritional value): Root vegetables (vitamins & minerals)

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4-Year Rotation System

⚠ Critical Rule: Beans Before Heavy Feeders

Always plant nitrogen-fixing beans the year BEFORE crops that need high nitrogen (potatoes, corn, squash, cabbage). Beans add 100-200 lbs of nitrogen per acre back into the soil — but only if you leave the roots in the ground after harvest.

Year 1: Establishing The System

Section Crop Type Space (sq ft)
Section A (NW) Potatoes Heavy Feeder 300
Section B (NE) Dry Beans Nitrogen Fixer 200
Section C (SW) Root Vegetables Light Feeder 200
Section D (SE) Squash + Corn Heavy Feeder 300

Year 2: First Rotation

Section Crop Type Notes
Section A Dry Beans Nitrogen Fixer Follows potatoes (replenishes nitrogen)
Section B Root Vegetables Light Feeder Benefits from residual bean nitrogen
Section C Squash + Brassicas Heavy Feeder Uses nitrogen from last year's beans
Section D Potatoes Heavy Feeder New location breaks disease cycle

Year 3: Second Rotation

Section Crop Type Notes
Section A Root Vegetables Light Feeder Deep roots improve soil structure
Section B Corn + Squash Heavy Feeder Modified Three Sisters system
Section C Potatoes Heavy Feeder Third location in 3 years
Section D Dry Beans Nitrogen Fixer Replenishes soil after squash

Year 4: Third Rotation + Recovery

Section Crop Type Notes
Section A Wheat + Cover Crop Soil Builder Adds organic matter (skip if <5,000 sq ft)
Section B Potatoes Heavy Feeder Fourth location completes cycle
Section C Dry Beans Nitrogen Fixer Builds seed stock
Section D Root Vegetables Light Feeder Overwinter some for seed (biennial)

The "Root Follows Leaf" Principle

  • Alternate between above-ground crops (beans, squash, corn) and below-ground crops (potatoes, roots)
  • This natural alternation prevents pest buildup and soil exhaustion
  • Different root depths access different nutrient layers
  • Above-ground crops provide living mulch while below-ground crops loosen soil

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Seasonal Rotation Calendar

📅 Spring (March-May)

  • March: Plant early potato varieties, direct seed peas/beans, add compost to all beds
  • April: Succession plant carrots & beets, hill potato plants, monitor for frost
  • May: Plant corn after last frost, plant squash 2 weeks after corn, plant pole beans

☀️ Summer (June-August)

  • June: Monitor potatoes for late blight, succession plant bush beans, continue root vegetable succession
  • July: Critical weed control in all sections, mulch squash heavily, check corn pollination
  • August: Harvest early potatoes, begin drying beans on plant, harvest early succession roots

🍂 Fall (September-November)

  • September: Plant winter wheat (if applicable), harvest main potatoes 2 weeks after vines die
  • October: Harvest squash after first frost, cure at 80°F for 10-14 days, harvest dry beans
  • November: Harvest all root vegetables before hard freeze, plant cover crops in empty sections

❄️ Winter (December-February)

  • Monthly: Check stored crops, remove any damaged produce immediately
  • Planning: Review rotation notes, plan next year's seed orders
  • Preparation: Repair tools, organize storage areas, study crop improvement techniques

⏰ Critical Timing Warnings

DON'T harvest too early:

  • Squash needs hard shell + first frost exposure
  • Potatoes stay in ground 2 weeks after vines die
  • Corn kernels must be completely hard
  • Early harvest = crop won't store properly = lost food supply

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Templates & Checklists

Spring Planting Checklist

Summer Maintenance Checklist

Fall Harvest Checklist

Winter Planning Checklist

Quick Memory Aids

The "Beans Before" Rule: Always plant beans the year before heavy feeders (potatoes, corn, squash, brassicas)
The "Three Years Minimum" Rule: Never return potatoes, brassicas, or beans to the same spot for 3+ years
The "Root Follows Leaf" Principle: Alternate above-ground and below-ground crops each year
The "Light Follows Heavy" Balance: Heavy Feeder → Nitrogen Fixer → Light Feeder → Heavy Feeder

Annual Record Template

Document each year:

  • Section planted with specific crop and varieties
  • Plant date and harvest date
  • Yield in pounds per section
  • Problems encountered (pests, diseases, weather)
  • Seeds saved: Yes/No + quantity
  • Photos: planting, mid-season, harvest
  • Soil amendments added (compost amount, cover crops)
  • Solutions applied and their effectiveness

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⚠️ Common Fatal Mistakes

Your Action Plan

Building food security is a multi-year process. Start today, not when you need it.

© 2026 PrepperBase - The 7 Crops Survival Garden Rotation System

Your survival garden is only as good as your soil health, and your soil health depends entirely on proper crop rotation.