That one rule is the whole strategy. Basil runs $28–64 a pound at Whole Foods clamshell prices; it grows in Massachusetts like it's trying to escape. Potatoes cost a dollar a pound; let Idaho keep them. Put your sunny square footage on the crops with restaurant prices and a small garden stops being a hobby with vegetables — it becomes the cheapest produce aisle in town.
| SALAD GREENS 1.25 LB | 15.00 |
| CHERRY TOMATOES 2 LB | 14.00 |
| HEIRLOOM TOMATO 1 LB | 4.50 |
| BASIL, FAT BUNCH | 6.00 |
| ZUCCHINI 3 LB | 7.50 |
| CUCUMBERS ×2 | 3.00 |
| LACINATO KALE, BUNCH | 3.50 |
| WHOLE FOODS SUBTOTAL | 53.50 |
| YOUR PRICE | 0.00* |
*Not a gimmick: seed, soil, water, and gear are all counted — they're the $490 and the $335 to the left. This receipt is what week 14 of 20 looks like once they're paid.
Every dollar figure on this page follows four rules. One: harvests are valued at what the same item costs at Whole Foods–tier organic retail in the Boston metro (checked July 2026 — swap in your own store's prices, the plan survives it).4,5 Two: every cash cost counts — beds, soil, seed, water, fence, the $20 soil test. Three: yields are set at the boring end of university-extension ranges, not seed-catalog optimism.1,6 Four: your time is not priced in — at accountant rates no small garden pencils, and neither does golf. Budget 1–4 hours a week in season and call it the gym membership you can eat.
| Plan | Y1 cash out | Y1 harvest | Y2+ cash | Y2+ harvest | Y2+ net |
|---|---|---|---|---|---|
| Starter | $490 | $450 | $115 | $450 | +$335 |
| Three-Bed | $1,190 | $1,100 | $260 | $1,250 | +$990 |
| Homestead | $2,600 | $1,700 | $380 | $2,100 → $2,600 | +$1,720 → +$2,220 |
| End of year | Starter | Three-Bed | Homestead |
|---|---|---|---|
| 1 | −$40 | −$90 | −$900 |
| 2 | +$295 | +$900 | +$820 |
| 3 | +$630 | +$1,890 | +$3,040 |
| 4 | +$965 | +$2,880 | +$5,260 |
| 5 | +$1,300 | +$3,870 | +$7,480 |
ROI lives in a narrow band: crops that are expensive per pound, productive per square foot, and happy in a 6b–7a season. Most garden guides ignore the first two. This table is the whole argument, sorted by what a square foot of bed earns you in one season.
| Crop | Store price | $/sq ft·season |
|---|---|---|
| Basil6 plants ≈ 3–4 lb; clamshells cost more than salmon | $28–64/lb | ~$20 |
| Cherry tomatoes10–15 lb per plant, June-set, frost-out | $7–8/lb | ~$17 |
| Salad greenscut-and-come-again, 4–5 sowings Apr–Oct | $12–14/lb | ~$10 |
| Raspberriesperennial; pays from year 2, then forever | $12–13/lb | ~$7per row-ft |
| Kale & chardone planting runs May–Thanksgiving; frost sweetens it | $6–7/lb | ~$6 |
| Snap peas → cucumberssame trellis, two seasons: peas till June, cukes after | $6–7/lb · $1.50/ea | ~$3+$4 |
| Zucchinilow $/lb but absurd volume; 2 plants feed a street | $2.50/lb | ~$3 |
| Garlicplant October, harvest July; zero effort between | $2/head | ~$4 |
| Crop | Why it loses |
|---|---|
| Potatoes | $1/lb at the store; a whole bed to save eight bucks |
| Storage onions | $1.50/lb, five months in the ground, fussy curing |
| Carrots | cheap, slow, and rocky New England soil forks them |
| Sweet corn | two ears per square foot; a dollar an ear in August |
| Winter squash & pumpkins | one vine annexes 50–100 sq ft of your best sun |
| Melons | coin-flip in a 6b summer; heartbreak per square foot |
Nothing wrong with any of these as a hobby. This page is about the ledger — and the ledger says a square foot of basil out-earns a square foot of potatoes by roughly forty to one.
Walk your yard on a sunny day and check at 10am, 1pm, and 4pm. Anywhere that's lit at all three checks is full sun (6+ hours) — that's plan-grade ground. Four to six hours grows greens and herbs happily; less than four grows shade-tolerant regret.
One weekend to build. Herbs, greens, cherry tomatoes — the top of the earners table, nothing else.
Three beds plus a ground patch for vines. Covers most of a household's produce June–October.
Adds berries, asparagus, garlic, and row-cover tunnels that stretch the season into November.
Diminishing returns are real and the chart shows them: dollars per square foot fall as you scale, because you run out of high-value crops to plant before you run out of appetite for zucchini. Size to what you'll actually eat and tend.
No script? Use the cards above — they bracket any yard: roughly $15/sq ft to start at small scale easing to ~$8 at large, returning ~$8–10/sq ft each year after year one.
This is the actual planting map for the 4×8. Trellis on the north edge so nothing gets shaded. Values are one conservative season at store prices — they sum to the $450 in the math above.
Boston and the coast run 7a — last frost mid-April, first frost around Halloween. The 128–495 suburbs run 6b — call it May 1 and October 15.2,3 The old Yankee rule still holds either way: tomatoes, basil, and cukes go out Memorial Day weekend, and nothing you do in April will beat a warm June.
| Crop | Start | Harvest |
|---|---|---|
| Snap peas | direct-sow mid-Apr | June |
| Salad greens | sow mid-Apr, resow every 3 wks; again Aug–Sep | May–Jun, Sep–Oct |
| Kale & chard | transplant early May | Jun–Thanksgiving |
| Cherry tomatoes | indoors mid-Mar or buy; out Memorial Day | mid-Jul–first frost |
| Basil | indoors early Apr or buy; out Memorial Day | Jun–Sep |
| Cucumbers | sow early Jun (after peas) | Jul–mid-Sep |
| Zucchini | direct-sow early Jun | Jul–Sep |
| Garlic | plant cloves late Oct | following July |
| Raspberries | plant canes May, year 1 | Aug–Sep from year 2 |
Most Eastern-Mass housing predates 1978, and yards near old foundations, driveways, and busy roads commonly carry lead from paint and old gasoline. UMass Amherst's soil lab runs a full nutrient panel with a lead screen for about $20.1 The plans above assume raised beds with clean imported soil, which sidesteps the problem entirely — but send the sample anyway. It's the cheapest line item on the page and the only one about your kids.
Inside 128 your adversary is a rabbit, not a moose. A 30-inch hardware-cloth skirt on the bed or plot perimeter (costed into the Three-Bed and Homestead plans) ends the war on day one. Skip the eight-foot deer fortress unless you back onto conservation land.
A drip line on a $30 hose timer waters the Three-Bed plan with roughly 120 gallons a week in peak summer — $25–45 for the whole season at Boston-area rates, already counted above. It also deletes the daily chore that kills most first-year gardens by August.
| Where | Zone | Last / first frost |
|---|---|---|
| Boston & inner suburbs | 7a | ~Apr 15 / ~Nov 1 |
| 128–495 belt | 6b | ~May 1 / ~Oct 15 |
| South Shore & Cape | 7a–7b | ~Apr 25 / ~Nov 10 |
2023 USDA map; the ocean buys the coast three extra weeks of fall.2,3
One yard runs a produce aisle. Five yards run a market. The failure mode of home growing is that everything ripens at once and everyone grows the same three things — so don't. Specialize by yard, swap on Sundays, and every household eats the full spread June through October while each grows only what its sun is best at.
| Yard | Specialty | Why that yard |
|---|---|---|
| №1 | Tomatoes & basil | the hottest, sunniest southern exposure on the block |
| №2 | Vines — zucchini, cukes, beans | the big yard; vines want floor space, not pampering |
| №3 | Greens & brassicas | tolerates the yard with afternoon shade |
| №4 | Peas, herbs, alliums | small yard, high value, low footprint |
| №5 | Berries & perennials | the household that'll still be here in five years |
Three habits make it work: split a bulk compost delivery (one yard of loam-compost runs ~$140 delivered — $28 each instead of $12 bags); one combined seedling order from a local grower each May; and a standing Sunday porch swap, no money, no app, no meetings. The zucchini yard will never be lonely.
Mail the soil sample to UMass ($20). Order seeds. If you're starting tomatoes and basil indoors, start them mid-month — or just plan to buy seedlings and skip the grow-light phase entirely.
Build the beds, take the soil delivery. Sow peas and the first salad greens by tax day. Everything cold-hardy goes in; everything tender waits.
Transplant kale early. Memorial Day weekend: tomatoes, basil, cukes, zucchini go out. Drip line on the timer the same day.
Resow greens (round two), trellis the tomatoes weekly, cut basil hard — cutting is what makes it bush out and earn.
Harvest is the job now. Pick cherry tomatoes every other day, cukes daily in August. Resow greens round three in late August for fall.
Fall greens hit their stride. Pull the tired basil, dry or freeze the last big cut as pesto cubes.
Plant garlic the last week — next July's harvest, zero effort in between. Row-cover the greens; kale ignores the frost and improves.
Final kale and chard cuts through Thanksgiving. Empty the drip line, tarp or leaf-mulch the beds, write down what out-earned what.
Nothing. You live in Massachusetts. Read the seed catalog; the second-year numbers above assume you got a little smarter, and you will.
How to argue with this page: every claim is a multiplication of a yield, a price, and a cost — all three listed here. If your Whole Foods charges differently or your yard yields better, redo the row; the shape of the conclusion survives any reasonable inputs. Numbers are conservative estimates, not promises.
Prepared July 2026 · Eastern Massachusetts edition · The Backyard Ledger