The question isn’t “what’s easy to grow.” Easy is not the point. The question is what you actually spend money on, and whether growing it yourself replaces enough grocery spending to justify the bed space and your time.
Three months of grocery receipts will answer this more precisely than any beginner’s list. Pull them. Look at every fresh produce line item. Rank by total annual spend - multiply your 3-month sum by four. That result is your personalized target list. If basil appears on every receipt and you’re paying $3 per bunch, basil is your first crop. If you’re buying salad greens twice a week at $5 a bag, salad greens go in.
The five crops below are not “easy” in a vague sense. They’re the crops that appear most often on household grocery lists, have the highest value density per square foot, and produce returns quickly enough that a first-year gardener sees real results. They’re also crops where the comparison between home-grown and store-bought is unambiguous.
What Value Density Means
Gardening guides talk about square footage. Homestead planning talks about dollars per square foot.
A crop that requires 4 square feet per plant and returns $2 in grocery offset is a poor use of that space. A crop that requires 0.5 square feet and returns $1.50 occupies a tenth of the area with comparable return. This ratio - the effective return per square foot of bed - is value density.
The five crops below have high value density because they’re expensive at retail, productive per square foot, and fast enough to generate multiple harvests per season. Using USDA AMS retail price data (2024-2025) and typical extension service yield estimates, here’s what each returns per square foot per season:
| Crop | Value density ($/sq ft/season) | Why it ranks high |
|---|---|---|
| Basil | $0.60-0.90 | $15-22/lb retail; tight spacing possible; continuous harvest |
| Arugula | $0.60-0.90 | $6-10/lb retail; cut-and-come-again; succession extends season |
| Cherry tomato | $0.50-0.80 | 8-12 lbs per plant; $3-5/pint retail; long season |
| Lettuce (mix) | $0.40-0.65 | $4-6/5 oz bag retail; continuous cut-and-come harvest |
| Green bean | $0.25-0.40 | $2-3/lb retail; high volume per linear foot |
Source: USDA AMS fruit and vegetable retail reports, 2024-2025. Yield estimates from Penn State Extension, Vegetable Production Guide, 2022.
Green beans rank lowest on value density in this group but belong on the list because they produce high volume from low seed cost, require almost no management, and are genuinely useful fresh or frozen.
The Five Crops: What the Numbers Actually Look Like
Here’s the per-crop breakdown for a typical 4x8 raised bed, planted to maximize each crop’s contribution. Figures based on standard extension service yield data and current USDA AMS retail prices:
| Crop | Sq ft/plant | Plants per 4x8 bed | Seed cost | Season yield (lbs) | Retail value | Net after seed |
|---|---|---|---|---|---|---|
| Basil | 0.5 | 24 | $2.99 | 1.5-2 | $33-44 | $30-41 |
| Lettuce (cut-and-come) | 0.5 | 24 | $2.49 | 3-5 | $18-30 | $15-28 |
| Cherry tomato | 4-6 | 4-5 plants | $3.50 transplant × 4 | 30-50 | $60-100 | $46-86 |
| Arugula | 0.25 | 40+ | $2.49 | 2-3 | $16-30 | $14-28 |
| Green bean | 0.5 | 24 (bush) | $2.99 | 8-12 | $16-36 | $13-33 |
Sources: yield data from Penn State Extension and Purdue Extension planting guides; retail prices from USDA AMS Specialty Crop Market News (2024-2025).
These numbers assume a single-wave planting. Succession planting lettuce and arugula - three or four plantings across the season - multiplies the yield column by 3-4x with no additional bed space or soil cost.
What a 4x8 Bed Actually Returns in Year 1
A well-planted 4x8 raised bed, filled with these five crops in proportionate amounts, returns $150-280 in grocery equivalents in Year 1 based on USDA average yield data and current AMS retail prices. That’s not a promise. It’s a calculation from stated inputs.
Input cost: $15-25 in seeds and transplants. $0-15 in amendments if your soil is already in decent shape. Total Year 1 input: $15-40.
The range of outputs ($150-280) reflects real variability. A gardener who succession-plants, harvests correctly, and doesn’t lose crops to preventable problems lands in the upper half of the range. A gardener planting for the first time with no prior soil prep lands in the lower half.
Either result is strongly net-positive in Year 1 on direct grocery cost. The bed itself - if you’re building new - has its own payback calculation. See First Three Years of Garden ROI for how Year 1 infrastructure investment plays out across three years.
Crop Notes
Basil. The fastest ROI in the home garden. Fresh basil at grocery stores runs $3-5 for a 0.75 oz clamshell - the standard retail package (USDA AMS Specialty Crop Market News, 2024-2025). A regularly harvested Genovese plant yields 0.5-1.5 lb over a season (Penn State Extension, Herb Production, 2019), which at 6-8 cuttings produces far more than any household uses fresh. One $2.99 packet seeds a full 4x8 bed row. Harvest by cutting stems above the lowest set of leaves - the plant branches and produces more. Pinch flower spikes the moment they form; a flowering basil slows leaf production immediately.
Arugula. Arugula costs $6-10 per pound at retail (USDA AMS). It grows in 30-40 days from seed (Cornell Cooperative Extension, Salad Greens, 2021), tolerates light frost, and produces cut-and-come-again for 3-4 weeks before bolting. In spring and fall, it’s one of the most productive crops per square foot in the garden. The limitation is the growing window: it bolts in heat above 75-80°F. Plan three to four successions - one in early spring, two more spaced three weeks apart, then a fall round 6 weeks before first frost. That covers approximately 12 weeks of productive harvest.
Cherry tomato. More specifically: an indeterminate cherry tomato like Sungold, Sweet Million, or Black Cherry. These plants produce continuously from first fruit set through frost - 8-12 lbs per plant over a full season in Zones 5-7 (Cornell University Cooperative Extension, Home Vegetable Garden, 2021). A 4-plant bed returns 30-50 lbs at $3-5/pint retail ($3-5 for roughly 0.75 lb). That math produces $120-330 in retail value from four plants. Subtract the transplant cost ($12-14 for four) and any support infrastructure. Cherry tomatoes are the highest-ceiling crop in this group.
Lettuce. Cut-and-come leaf lettuce at close spacing produces $0.40-0.65 per square foot per season. Succession-plant every two weeks in spring and again in late summer. Harvest outer leaves; leave the center crown to regenerate. The limitation, like arugula, is heat. In most of Zones 5-7, lettuce goes dormant or bolts by July. Fall succession is equally or more valuable than spring - plant 8 weeks before first fall frost and you’ll harvest through October.
Green beans. Plant bush beans at 2-inch spacing in short rows, succession-plant every two weeks through July, and you’ll have continuous production from late June through August. The ROI is modest per square foot compared to herbs, but the absolute volume is useful: 8-12 lbs from a 4x8 bed at $2.50-3/lb replaces real grocery spending on a vegetable your household likely eats regularly. Beans also teach you the habit of checking the garden every two days - picking beans regularly triggers new production. Plants you don’t harvest in time become seedy and stop producing.
Harvest Calendar: What to Expect and When
The numbers in the tables above are seasonal totals. What they don’t show is when you’ll actually be harvesting - which matters a lot for planning grocery spending and managing expectations. First-year gardeners who don’t know that lettuce is done by July often feel like the garden “stopped working” mid-season when it’s actually running on schedule.
This calendar covers Zone 6 (last frost late April to early May; first fall frost mid-October). Adjust 2-4 weeks forward for Zone 5, 2-4 weeks back for Zone 7.
| Crop | May | June | July | August | September | October |
|---|---|---|---|---|---|---|
| Arugula | Starting (spring planting germinating) | Peak spring harvest; may bolt by late June | Done - heat-induced bolt; wait for fall | Fall succession in by late August | Peak fall harvest | Harvest continues until hard frost |
| Lettuce | Starting; first cuts mid-May | Spring peak; harvest aggressively before heat | Done; bolt likely by July in most Zone 6 | Fall succession goes in late August | Fall peak | Harvest until hard frost; cold-tolerant varieties extend further |
| Basil | Start indoors; don’t transplant until soil above 65°F | Transplant out; first harvest late June | Peak production; harvest weekly | Continued peak; pinch flowers constantly | Slowing; harvest bulk before first frost threat | Done at first frost |
| Cherry tomato | Start transplants; set out after frost | Transplanted; vegetative growth; no fruit yet | First fruits; ramp-up period | Peak production; daily picking | Continued production | Final push before frost; harvest everything green before first hard freeze |
| Green bean | n/a - direct sow in June | Direct sow; first succession late June | First harvest; second succession | Peak harvest; third succession | Late succession harvest | Done by frost |
Sources: Maturity data from Penn State Extension Vegetable Production Guide (2022); frost date ranges from USDA ARS Plant Hardiness Zone Map.
The gaps in this calendar are real. July is the dead zone for cool-season crops in Zone 6: arugula and lettuce are done, basil is growing but not yet harvesting heavily, tomatoes aren’t producing yet. This is when first-year gardeners get discouraged. It’s normal. The solution is a fall lettuce and arugula succession, planted in late July or early August, that fills the September-October window. See the arugula succession planting section on the arugula crop page for the timing details.
What Beginners Get Wrong
Three specific mistakes cost first-year gardeners real money. Not abstract mistakes - dollar-cost mistakes.
Too much zucchini. Zucchini runs $0.80-1.50/lb at retail (USDA AMS, 2024-2025). A single plant producing 6-8 lb over its season returns $5-8 in grocery equivalents. Three zucchini plants produce more squash than most households eat, and the excess has zero grocery offset value because you can’t use it. Neighbors won’t answer the door in July. Grocery stores won’t buy it. You compost it or quietly leave it on porches. One zucchini plant per household is a garden fixture. Three plants is a liability.
Perennials before you’re ready. Asparagus, rhubarb, and artichoke are worth growing once you understand your garden. They are not worth growing in Year 1 because they return nothing for 2-3 years. Asparagus planted in spring of Year 1 produces first real harvest in Year 3 at earliest. That’s $0 in grocery offset for 24 months while your bed is occupied. Plant these after you understand your site and have working productive beds. The demoralization from waiting 3 years with no return kills more new homestead gardens than pests or drought.
Not tracking what you grew. If you don’t record your seed costs, your amendment costs, and an estimate of what you harvested, you cannot know if the garden is working. This doesn’t require a spreadsheet. A note in your phone with the purchase date, seed costs, and a rough estimate of what came out is sufficient. Gardeners who track for even one season make dramatically better decisions in Year 2 - they know which crops actually paid off and which ones they romanticized.
The Garden ROI app solves this problem directly: log your inputs, log your harvests, get the math. It’s the tool this project was built around.
Year 2: Three Crops Worth Adding
The honest next step after Year 1 is not adding more crops. It’s adding more of the crops that worked. If your cherry tomatoes ran out in August and you wished you had more, grow six plants next year. If your arugula succession failed because you didn’t start the fall planting on time, set a calendar reminder and do it. Repetition of the same five crops with better execution produces better ROI than adding complexity.
That said, three crops earn a genuine place in a Year 2 expansion - each for a specific reason tied to what you already know from Year 1.
Garlic. Plant in fall (October in Zone 6), harvest in July. Garlic is the lowest-maintenance vegetable in the garden: put the cloves in the ground in October, mulch them, pull the scapes in June, harvest bulbs when the lower leaves brown in July. There is almost nothing that can go wrong between planting and harvest that requires your intervention. Garlic at grocery stores runs $0.50-1.00 per head for standard softneck bulbs and $2-4 per head for specialty hardneck varieties (USDA AMS, 2024-2025). A seed garlic investment of $15-20 buys enough cloves for a full 4x8 bed, yielding 25-40 heads (Penn State Extension, Garlic Production, 2020). At $1.50 average value per head, that’s $37-60 in grocery offset for an essentially zero-maintenance crop. It also nests neatly in the bed schedule - garlic goes in after the fall arugula or lettuce comes out, so it uses bed space that would otherwise sit empty from October to May.
Cucumber. High value ($1.00-2.00/lb; USDA AMS, 2024-2025), produces prolifically, and fits the bed space and production timing you’ve already proven with cherry tomatoes. A trellis takes up zero floor space; a 4-foot section of fencing with three plants produces 10-15 lbs of cucumbers in Zones 5-7 (OSU Extension, Cucumber Production in Ohio, 2021). The main management requirement - harvesting every 2-3 days when plants are producing - is the same habit green beans already trained you on. One note: if you want to save cucumber seeds (see the seed saving guide), grow only one variety per season to avoid crossing.
Kale. Kale extends your growing season in both directions. Transplant in April when it’s still too cold for tomatoes; harvest through November and sometimes December in Zone 6 after everything else is dead. It belongs in Year 2 because it fills the July gap in the harvest calendar above - kale is slow enough to establish that you don’t harvest it seriously until late summer, which is exactly when lettuce and arugula are done. It’s also the cheapest crop per pound to grow: a $2.49 packet produces plants that yield 2-3 lbs of leaves each over a long season (Penn State Extension, Kale Production, 2021), and the seeds last 3-5 years stored cool and dry (USDA Agricultural Research Service, seed viability guidelines). One sowing covers multiple seasons.
Where to Go From Here
Once you’ve grown these five crops through one season, you have enough experience to add more specific crops based on what your household actually buys. The arugula crop page, basil page, and cherry tomato page have detailed growing information for each.