Soil, Seeds & Animals
The three systems that close the loop — rotating crops so the soil stays healthy, saving seeds so you never buy again, and integrating animals to fill the nutritional gaps no garden can cover on its own.
Crop Rotation
Never plant the same family in the same bed two years in a row. Rotation prevents disease buildup, balances soil nutrients, and breaks pest cycles naturally. Follow this 4-year plan for every annual bed.
The 4-Year Rotation Cycle
| Year | Family | Crops | Effect on Soil |
|---|---|---|---|
| Year 1 | Legumes | Beans, peas, soybeans, peanuts | Adds nitrogen — fixes N from air into soil for next crop |
| Year 2 | Brassicas | Kale, cabbage, broccoli, Brussels sprouts, cauliflower, turnips | Uses nitrogen — hungry feeders that thrive on legume leftovers |
| Year 3 | Roots & Alliums | Carrots, beets, parsnips, onions, garlic, leeks | Loosens soil — deep roots break compaction; alliums suppress soil pathogens |
| Year 4 | Fruits & Nightshades | Tomatoes, peppers, cucumbers, squash, corn, potatoes | Heavy feeders — amend with compost; follow with legumes next year |
Key rule: Tomatoes, potatoes, peppers, and eggplant are all nightshades (Solanaceae).
Never follow one with another — they share blight and nematode pressure. Allow at least 3 years between nightshade plantings in the same bed.
Rotation for Small Spaces — 3-Bed Minimum
If space is tight, compress to a 3-bed rotation: Legumes → Brassicas + Roots → Fruiting crops. Always move in one direction. Label beds A, B, C and rotate A→B→C→A each spring.
What Doesn't Rotate
| Crop | Why It Stays Put |
|---|---|
| Asparagus | Perennial — dedicated permanent bed; don't disturb roots |
| Rhubarb | Perennial — permanent bed; improves with age |
| Garlic | Exception: rotate every 3 years to prevent white rot buildup |
| Strawberries | Renew bed every 3–4 years; move to fresh ground to prevent disease |
| All perennial veg | Permanent beds — build soil around them, don't rotate |
Succession Planting
Stagger sowings so you harvest continuously instead of all at once. Without succession planting you get a glut in June and nothing in August.
| Crop | Interval | How Many Successions | Notes |
|---|---|---|---|
| Lettuce | Every 2–3 weeks | 4–6 (spring) + 3–4 (fall) | Stop in summer heat; resume in August |
| Spinach | Every 3 weeks | 3 (spring) + 3 (fall) | Bolts in heat; spring and fall only |
| Radishes | Every 2 weeks | 8–10 through season | 30-day crop; easiest to succession plant |
| Green Beans | Every 3 weeks | 3–4 | Last sowing 10 weeks before first frost |
| Peas | Once spring, once fall | 2 | Won't produce in summer heat |
| Beets | Every 3–4 weeks | 3–4 | Spring and fall; stores well so fall crop is priority |
| Carrots | Every 3 weeks | 3–4 | Fall crop sweetest; leave in ground until needed |
| Arugula | Every 3 weeks | 4–5 | Bolts fast in heat; prioritize spring and fall |
| Bok Choy | Every 3 weeks | 2 spring + 2 fall | Avoid summer heat entirely |
| Cilantro | Every 2–3 weeks | 5–6 | Bolts quickly; let some go to seed for coriander |
| Zucchini | Once, then one more 6 wks later | 2 | Second planting avoids vine borer pressure |
| Basil | Every 4 weeks | 3 | Frost-sensitive; start last succession indoors |
Seed Saving
Save seeds from open-pollinated and heirloom varieties and you never buy seeds again. Hybrids (marked F1) don't breed true — always save from OP or heirloom stock.
Seed saving is half the picture. For how to start those seeds —
germination temperatures, stratification, scarification, hardening off — and how to clone
your best plants through cuttings, division, layering, and grafting, see the
Propagation page.
Easiest Seeds to Save (Start Here)
| Crop | Difficulty | Method | Isolation Needed | Storage Life |
|---|---|---|---|---|
| Beans (dry) | Easy | Let pods dry on plant; shell and store | None — self-pollinating | 3–4 years |
| Peas | Easy | Let pods dry fully on vine; shell and dry | None — self-pollinating | 3 years |
| Tomatoes | Easy | Ferment seeds in water 3 days; rinse and dry | 25 ft between varieties | 4–6 years |
| Peppers | Easy | Scrape seeds from fully ripe fruit; dry 2 weeks | 300 ft (cross-pollinates easily) | 2–3 years |
| Lettuce | Easy | Let plant bolt and flower; shake dry seed heads into bag | 25 ft between varieties | 3 years |
| Squash / Pumpkin | Medium | Scoop seeds from ripe fruit; rinse and dry 3 weeks | ½ mile (hand-pollinate to be safe) | 4–6 years |
| Corn | Medium | Leave ears on stalk until fully dry; shell and store | 1 mile from other corn — grow only one variety | 2–3 years |
| Beets | Medium | Biennial — overwinter roots, replant spring, collect seed in year 2 | 1 mile (wind-pollinated) | 4 years |
| Carrots | Medium | Biennial — same as beets; collect seed heads in year 2 | 1 mile (wind-pollinated) | 3 years |
| Kale / Collards | Medium | Let overwinter; collect seed pods before they shatter | 300 ft from other brassicas | 4 years |
| Onions / Garlic | Medium | Garlic: save largest cloves to replant. Onions: biennial seed saving | 1 mile for seed onions | Garlic: replant annually |
Seed Storage Rules
| Rule | Detail |
|---|---|
| Cool + dry + dark | Ideal: 35–50°F, below 50% humidity. A sealed jar in the refrigerator works perfectly. |
| Label everything | Variety name, year saved, location. Unlabelled seeds become useless in 2 seasons. |
| Test viability | Before planting old seeds: place 10 on a damp paper towel, fold, wait 7 days. If fewer than 6 sprout, buy fresh. |
| Silica gel packets | Add one to each jar to absorb moisture. Recharge in 250°F oven for 30 min when saturated. |
| Save from best plants | Always save from the healthiest, most productive plants — not the first or last to fruit. |
Soil Building
Healthy soil grows healthy food. A self-sufficient system must feed the soil as much as it takes from it. The goal is living soil — teeming with fungi, bacteria, and worms that do the feeding work for you.
Compost System
| Input | Type | C:N Ratio | Notes |
|---|---|---|---|
| Kitchen scraps (veg only) | Green (N) | 15:1 | No meat, dairy, or cooked food |
| Fresh grass clippings | Green (N) | 20:1 | Don't pile thick — layer with browns |
| Fresh manure (chicken, rabbit) | Green (N) | 10:1 | Hot-compost first; don't apply raw |
| Dried leaves | Brown (C) | 60:1 | Shred for faster breakdown |
| Straw / hay | Brown (C) | 80:1 | Excellent mulch base |
| Cardboard (unprinted) | Brown (C) | 350:1 | Wet before layering; smothers weeds |
| Wood chips | Brown (C) | 400:1 | Surface mulch only — don't dig in |
| Comfrey leaves | Green (N) | 10:1 | Activator — accelerates whole pile |
Target ratio: 3 parts brown : 1 part green. Keep moist (wrung-out sponge), turn every 2–4 weeks. Ready in 2–4 months when it smells like earth and you can't identify original materials.
Annual Soil Amendment Schedule
| Timing | Action | Rate |
|---|---|---|
| Early spring (before planting) | Top-dress all beds with 2–3" finished compost | ~1 cubic yard per 100 sq ft |
| After last frost | Apply 3–4" wood chip mulch between plants | Suppresses weeds; feeds fungi |
| Midsummer | Comfrey chop-and-drop around heavy feeders | 3–4 cuts per plant per season |
| After harvest | Plant cover crop (winter rye + hairy vetch) in empty beds | Prevents erosion; adds N in spring |
| Late fall | Thick straw mulch over all perennial beds | Protects roots; feeds worms over winter |
Cover Crops by Season
| Cover Crop | Season | Benefit |
|---|---|---|
| Winter Rye | Fall – spring | Prevents erosion; massive organic matter; easy to terminate |
| Hairy Vetch | Fall – spring | Fixes 60–120 lbs N/acre; winter-hardy; pairs with rye |
| Crimson Clover | Spring – summer | Fixes nitrogen; attracts pollinators; terminates easily |
| Buckwheat | Summer (45-day crop) | Smothers weeds; attracts beneficial insects; fast turnover |
| Oats | Spring or fall | Winter-kills in zones 5–6 (no termination needed); loose residue |
Animal Integration
No garden fully covers all nutritional needs. Four to six chickens solve the three hardest gaps — B12, EPA/DHA omega-3, and complete protein — while producing the best fertilizer available and controlling pests.
The four nutrient gaps only animals reliably fill:
Vitamin B12 · EPA/DHA omega-3 · Vitamin D (from pasture eggs) · Complete bioavailable protein.
You can patch these with supplements — or you can keep four chickens.
Chickens — The Core Animal for This System
| Factor | Detail |
|---|---|
| Number needed | 4–6 hens for two people; provides 24–36 eggs/week at peak lay |
| Best breeds | Rhode Island Red, Plymouth Rock, Sussex — dual-purpose (eggs + meat), hardy, good layers |
| Space | 4 sq ft/bird inside coop; 10 sq ft/bird in run minimum. More is always better. |
| Feed | Layer pellets + kitchen scraps + pasture. Pasture eggs have 3–6× more omega-3 than confined eggs. |
| Nutritional output per egg | 6g complete protein, 70 kcal, B12, D, selenium, choline — one egg covers a meaningful share of daily targets |
| Manure value | ~1 lb/bird/day; highest N of any common livestock manure — hot-compost before applying |
| Pest control | Rotate through garden in fall after harvest — scratch up grubs, slugs, and overwintering pests |
| Garden integration | Move in mobile pen ("chicken tractor") across garden beds before planting each spring |
Optional Additions — When to Expand
| Animal | What It Adds | Space / Effort | When to Consider |
|---|---|---|---|
| Rabbits | Meat protein, EPA/DHA, B12; manure is cold (can apply directly); no noise | Low — hutch-based; very efficient feed conversion | When meat protein is a priority; no extra land needed |
| Dairy Goat | Milk, cheese, butter — covers calcium, B12, complete fat; one goat = 1 gallon/day | Medium — needs daily milking; 200 sq ft minimum | When dairy is desired and land allows; 2 goats minimum (social animals) |
| Fish Pond (Perch / Tilapia) | EPA/DHA omega-3, complete protein; pond water = liquid fertilizer | Medium — IBC tote or pond; minimal daily care once established | When EPA/DHA gap is a priority without keeping mammals |
| Ducks | Eggs (richer than chicken), slug and snail control, less garden damage than chickens | Low-medium — need water source; messier than chickens | High slug pressure; wet climate; want egg variety |
| Honeybees | Pollination (can increase garden yield 20–30%), honey for calories and preservation | Low — 2 hive checks/month in season; minimal space | Any time — highest return on investment of any addition |
Garden Integration Calendar
| Season | Animal Task | Garden Benefit |
|---|---|---|
| Early spring | Move chicken tractor across empty beds | Scratch, fertilize, and pest-clear before planting |
| Spring–summer | Collect manure weekly; hot-compost | Finished compost ready by fall |
| Summer | Let chickens free-range after harvest of each bed | Clean up crop debris; eat pests |
| Fall | Full garden rotation through chicken tractor | Deep scratch, fertilize, overwinter pest control |
| Winter | Deep litter method in coop (add bedding on top) | Compostable litter pile ready in spring |