Seed garlic costs $0.25 to $0.40 per clove. One clove grows into one full head. At harvest, one pound of seed garlic returns 6 to 8 pounds of dried heads. In Year 2, if you save your largest heads to replant, your seed cost drops to zero.
That’s the case in three sentences. The rest of this article is the supporting math and the honest accounting of what makes Year 1 harder than Year 2.
The Per-Clove Cost Breakdown
Seed garlic - pre-selected planting stock, certified disease-free, sold by the pound - runs $12–$20 per pound from reputable suppliers. One pound contains roughly 40–50 individual cloves depending on the variety: a large-cloved Porcelain type like Music yields fewer cloves per pound than a multi-cloved Rocambole. At $12/lb and 50 cloves, your cost is $0.24 per clove. At $20/lb and 40 cloves, it’s $0.50. The midpoint most growers actually hit is $0.25–$0.40 per clove.
Each clove becomes one head. The per-clove price is your per-unit production cost.
What You Get Back
USDA ERS retail price data shows conventional softneck garlic averaging $3–$5/lb at grocery stores (USDA Economic Research Service, Vegetables and Pulses Yearbook, 2023). That’s the Chinese-grown, months-old, fumigated commodity product. Domestic hardneck garlic at farmers markets and specialty retailers typically runs $5–$12/lb based on USDA AMS terminal market specialty crop reports - and that range climbs higher for single-variety hardneck from small producers.
One pound of seed garlic planted in fall yields 6–8 lbs of dried, cured heads at harvest. Call it a 6:1 to 8:1 return by weight.
Do the math at the low end: 1 lb of seed garlic at $15 planted, returning 6 lbs of hardneck at $6/lb retail = $36 in grocery value against $15 in seed cost. That’s a $21 net return on the seed alone, not counting your labor or bed space.
At the high end: 1 lb at $15, returning 8 lbs at $10/lb (specialty market pricing for good domestic hardneck) = $80 in value. Same $15 seed cost.
That spread - $21 to $65 net per pound of seed planted - is why garlic shows up in nearly every serious homestead crop discussion.
Year 1 Honest Accounting
The seed-to-value math above is real, but it’s not the whole picture in Year 1. You also have:
| Expense | Cost | Notes |
|---|---|---|
| Seed garlic (1 lb) | $15–$20 | Enough for roughly 40–50 plants |
| Soil amendments (compost, nitrogen) | $10–$20 | Blood meal or 10-5-5 granular for spring top-dress |
| Mulch (straw) | $5–$10 | 3–4 inches after planting; one bale covers a small bed |
| Total Year 1 input cost | $30–$50 | Per pound of seed planted |
Against that $30–$50 in inputs, your harvest value is $36–$80+ as calculated above. You’re likely to come out ahead in Year 1 - but not by the margin the raw seed-to-value math implies. Soil costs, amendment costs, and the 9-month commitment of bed space all cut into the return.
The break-even question for Year 1 isn’t really about garlic. It’s about whether your beds are already built and amended. If you’re starting from scratch - new raised bed, new soil - read Raised Bed Break-Even first. Garlic goes into that bed as a tenant, not the reason you built it.
Year 2 and Beyond: Where the Math Gets Better
Save your largest, firmest heads at harvest. Don’t eat them. Break them into cloves and replant in fall. Your seed cost in Year 2 is $0.
You still pay for amendments ($10–$20) and mulch ($5–$10). Total input cost: $15–$30 per bed. Your harvest value hasn’t changed. The net return in steady state is measurably better than Year 1, and you’re improving your seed stock every year by selecting the best heads.
This is the actual case for garlic as a homestead staple crop: the economics improve every year you grow it, compounding in your favor without additional capital outlay.
The Storage Premium
Most vegetables give you a harvest window measured in days or weeks. Garlic gives you 6 to 9 months of storage for hardneck varieties, and up to a year for properly-cured softneck (University of Minnesota Extension, Garlic Production, 2018). Harvest in June or July. Start pulling heads off the string in November. Still cooking from your harvest in March.
One season’s production, managed correctly, covers your household for a year. That compresses the ROI timeline significantly: you’re not comparing the cost of garlic you grow in June to garlic you buy in June. You’re comparing it to every head of garlic you buy across 12 months.
A household that uses two heads of garlic per week - a real number for anyone who cooks regularly - goes through roughly 100 heads per year. At $1–$2 per head for quality domestic garlic, that’s $100–$200 annually. One serious planting of 50–60 cloves gets you most of the way there. Two pounds of seed garlic covers it entirely.
Hardneck vs. Softneck: Which ROI Is Better
Hardneck garlic (Allium sativum var. ophioscorodon) yields larger individual cloves, has more complex flavor, and commands higher prices at market. It stores 6–8 months. It also produces scapes in late spring - the coiled flower stalks you remove to redirect energy into bulb sizing. Removing scapes at the first full curl increases final bulb size by 25–30% (University of Minnesota Extension, 2018) and gives you a genuinely useful early bonus harvest.
Softneck (A. sativum var. sativum) stores longer and grows more reliably in warm-winter climates (zones 7+). The flavor is milder. Grocery store pricing for softneck is lower, which affects your comparison point: $3–$5/lb for what you’re replacing, versus $5–$12/lb for hardneck.
For the ROI calculation, hardneck in zones 4–7 almost always wins. The flavor differential justifies the price premium at market, and the scape bonus adds value that softneck doesn’t produce.
How Garlic Compares to Other High-ROI Crops
The crops that compete with garlic on ROI math are herbs (basil, especially) and tomatoes. Basil returns extraordinary value per square foot but requires continuous active harvest and doesn’t store. Tomatoes require significant management and yield heavy but perishable. Garlic requires almost no attention from November through April, stores for months without refrigeration, and improves your seed stock when you harvest well.
See the garlic crop page for full growing details: planting timing, soil requirements, the scape harvest, disease risk (white rot is the one thing that can derail the whole enterprise), and post-harvest curing protocol.
Tracking Your Garlic ROI
The inputs and outputs here are simple enough to track on paper, but the Garden ROI app does the math automatically. Log your seed purchase, your amendment costs, and your harvest weights in July. The app calculates your cost per head and your net return against current retail prices. Over two or three seasons, you’ll have real data on what garlic actually saves you - not an estimate based on retail price assumptions, but your specific cost structure against your actual yields.
The number most growers see by Year 3 is a net return of $2–$5 per head grown, against near-zero input cost. That’s the steady-state picture.