How Much Should You Plant? A Vegetable Garden Planner That Does the Math

Last Updated on September 20, 2026 by teamobn

There’s a scene every new gardener eventually stars in. It’s late July. You’re standing in front of six zucchini plants, holding a baseball bat–sized squash you didn’t want, wondering how to give this one away without making a neighbor feel obligated. Meanwhile you have half a lettuce leaf and no tomatoes because you forgot to plant enough of what you actually eat.

The problem is that seed packets and starts come in generic quantities that have nothing to do with your household. A well-planned garden works backward from what your family will actually eat, then allocates space based on real yields per plant.

🥕

How Much Should You Plant?

Free 60-second planner · what to grow, how many, and how much harvest to expect

PLAN MY GARDEN →

Realistic yields per plant

The math changes everything. A few honest numbers to calibrate against:

  • One tomato plant: 8–15 lbs over a season. Two plants per adult who eats fresh tomatoes is usually plenty.
  • One zucchini plant: 15–25 lbs. One plant feeds a household. Two plants make you a zucchini bread evangelist.
  • One bush bean plant: about half a pound. Grow them in blocks of 15–20 plants for a real return.
  • Lettuce and leafy greens: ~½ lb per plant, but succession-plant every 2 weeks or you’ll have a glut then nothing.
  • One winter squash / pumpkin plant: 15+ lbs but eats 20 square feet. Only worth it if you have real space.
  • Carrots: tiny footprint, tiny per-plant yield. Grow them by the row-foot, not the plant.

The four goals, sized differently

Variety: a bit of everything. Best for kitchen gardening and cooking flexibility. Yield: heavy on high-producers like zucchini, tomatoes, and beans. Feeds a family through the summer. Preserving: everything from Yield mode, plus a second planting mid-season so you have canning quantities in fall. Easy wins: only crops rated high-reliability for beginners. Beans, lettuce, herbs, radishes, zucchini. Skip the fussy stuff until you have a season under your belt.

Space allocation, roughly

A 100 sq ft bed (roughly one 4×8 raised bed plus a small companion strip) can realistically produce 60–80 lbs of vegetables in a temperate season. A single 4×8 bed on its own runs about 20–35 lbs. Container-only setups on a balcony can still deliver 10–20 lbs from three good containers if you focus on high-yield crops.

Get your personalized plan

Enter your growing space, household size, primary goal, growing-season length, and skill level. The planner assigns realistic plant counts by crop, tells you how much harvest to expect, and gives you a shopping list of seed packets and starts.

Frequently asked questions

What’s the best size for a first vegetable garden?

One 4×8 raised bed (32 sq ft). Big enough for a real harvest across 4–6 crops, small enough to actually maintain. Second-year gardeners usually add one more.

What vegetables give the biggest return per square foot?

Tomatoes, zucchini, pole beans (vertical), and leafy greens with succession planting. Corn and pumpkins are the opposite. Space hogs with modest per-square-foot yield.

How much time does a vegetable garden take?

Rule of thumb: 30 minutes a week per 100 sq ft once established, plus 3–4 focused weekends for setup, planting, and end-of-season cleanup. Watering can automate.

How many plants for your table? Let’s get started…

YOU MIGHT ALSO LIKE

|

Search All Projects:

The posts on this site sometimes contain an affiliate link or links to Amazon or other marketplaces. An affiliate link means that this business may earn advertising or referral fees if you make a purchase through those links.

Secret Link