Is Your Garden Worth It? How to Calculate Your Garden's ROI

“You could just buy tomatoes at the store for $3/lb.” Every gardener has heard this from someone who doesn’t garden. And honestly? They might be right — if you don’t track your numbers.

The truth is that some gardens lose money and some gardens produce hundreds of dollars in food. The difference usually comes down to what you grow, how you grow it, and whether you’re tracking the numbers at all.

The Garden ROI Formula

Garden ROI is straightforward:

ROI = (Harvest Value − Total Costs) ÷ Total Costs × 100

If you grew $500 worth of produce and spent $200 on supplies, your ROI is 150%. You tripled your money. But you need real numbers, not estimates.

Tracking Your Costs

Every dollar you spend on your garden is an input. Be honest — include everything:

Startup Costs (Year 1 Only)

Raised bed materials or garden plot prep
Soil and initial amendments
Tools (trowel, hoe, watering can, hose)
Trellises, cages, row covers
Irrigation setup (drip lines, timers)

Annual Recurring Costs

Seeds and transplants
Fertilizer and soil amendments
Compost (if purchased)
Pest and disease management
Water (check your utility bill before and during garden season)
Replacement supplies (stakes, twine, row cover)

Hidden Costs People Forget

Container soil — Potting mix for container gardens needs refreshing annually
Seed starting supplies — Trays, heat mats, grow lights, seed starting mix
Infrastructure maintenance — Replacing rotted bed boards, fixing irrigation leaks

What NOT to Include

Don’t count your time. Gardening is a hobby. If you count your labor at $25/hour, no backyard garden is profitable — just like no gym membership is “worth it” if you bill yourself for workout time. The ROI calculation tells you if your garden pays for its material costs, not whether it’s a profitable business.

Valuing Your Harvest

This is where tracking harvest weight becomes critical. There are two ways to value what you grow:

Grocery Store Pricing

Compare against conventional produce prices at your local supermarket. This is the conservative approach.

Typical grocery prices (2026):

Tomatoes: $2.50–4.00/lb
Bell peppers: $1.50–3.00 each
Lettuce: $2.00–3.50/head
Herbs (basil, cilantro): $2.00–3.00/bunch
Zucchini: $1.50–2.50/lb
Green beans: $3.00–4.00/lb
Cucumbers: $1.00–1.50 each

Farmers Market / Organic Pricing

If you grow organically (no synthetic pesticides or fertilizers), compare against organic or farmers market prices. These are typically 50–100% higher than conventional.

Typical organic/farmers market prices:

Tomatoes: $4.00–6.00/lb
Bell peppers: $2.50–4.00 each
Mixed greens: $8.00–12.00/lb
Fresh herbs: $3.00–5.00/bunch
Heirloom varieties: premium pricing (often 2x conventional)

Use whichever comparison reflects what you’d actually buy. If you buy organic at the farmers market, use those prices. If you buy conventional at the supermarket, use those.

Example: A Real Garden Budget

Here’s a realistic first-year budget for a 4x8 raised bed garden:

Costs

Item	Year 1	Year 2+
Raised bed kit	$150	$0
Soil (32 cu ft)	$120	$20 (amendments)
Seeds	$30	$30
Tomato cages (4)	$40	$0
Fertilizer	$15	$15
Drip irrigation	$35	$5 (repairs)
Misc supplies	$20	$10
Total	$410	$80

Harvest Value (Conservative, Grocery Prices)

Crop	Yield	$/lb	Value
Tomatoes (4 plants)	40 lbs	$3.00	$120
Peppers (4 plants)	15 lbs	$3.50	$52
Lettuce (succession)	10 lbs	$4.00	$40
Herbs (basil, cilantro)	3 lbs	$12.00	$36
Beans (bush)	8 lbs	$3.50	$28
Cucumbers (2 plants)	15 lbs	$1.50	$22
Total	91 lbs		$298

The Verdict

Year 1 ROI: -27% (you spent $410, grew $298 worth of food)

Year 2 ROI: +273% (you spent $80, grew $298+ worth of food)

This is the pattern for almost every garden: Year 1 is an investment. Year 2 onward is where the returns kick in, because startup costs don’t repeat and your skills improve (meaning higher yields).

Crops With the Best ROI

Not all crops are created equal. Some give you dramatically better returns:

High ROI Crops

Herbs — Fresh basil costs $2–3/bunch at the store. One plant produces basil all season. ROI is astronomical
Tomatoes — A single indeterminate tomato plant can produce 15–25 lbs. At $3–4/lb (organic), that’s $45–100 from one plant
Peppers (hot) — Specialty hot peppers cost $6–12/lb retail. They’re easy to grow and prolific
Lettuce/greens — Succession planting gives continuous harvests. Organic mixed greens cost $8–12/lb at the store
Green beans — High yielding, easy to grow, and $3–4/lb retail

Low ROI Crops (Still Worth Growing)

Potatoes — Cheap at the store ($1/lb). You need lots of space for modest returns
Corn — Takes up significant space for 1–2 ears per stalk
Winter squash — Long growing season, heavy feeder, cheap to buy
Cabbage — Inexpensive at the store, takes up space for months

This doesn’t mean you shouldn’t grow potatoes or corn — grow what you love eating. But if ROI matters to you, lean toward high-value, high-yielding crops.

The Intangible Returns

ROI isn’t the whole picture. Your garden also produces:

Better flavor — A sun-warmed tomato from your garden tastes nothing like a grocery store tomato
Variety access — Grow heirlooms and specialty varieties you can’t buy anywhere
Food security — Knowing how to grow food is a skill that appreciates over time
Health benefits — Gardening is exercise, stress relief, and vitamin D in one activity
Knowledge — Every season makes you a better grower

Track It Automatically

Calculating ROI by hand is tedious. You need to log every harvest, remember every receipt, and do the math at the end of the season. Most people give up by August.

garden.gg tracks both sides of the equation. Log harvests as you pick them — weight, crop, date. Log expenses as you incur them — seeds, soil, supplies. At any point during the season, you can see your running ROI, your most productive crops, and your cost breakdown. No spreadsheets required.

The gardens that generate the best returns are the ones with data behind them. Track your numbers, and you’ll know exactly what your garden is worth.