Garden Yield & Savings Calculator

How the Garden Savings Calculator Works

This calculator compares the cost of growing vegetables at home versus buying them at grocery store prices. Select the crops you plan to grow, enter how many plants you have, and the tool calculates your expected yield in pounds based on average harvest data for each crop. It then multiplies your yield by current 2026 grocery store prices to show your total savings. Add your startup costs for soil, seeds and tools to see your net return on investment and break-even point. All calculations run instantly in your browser with no data stored.

Why Growing Your Own Vegetables Saves Money

A single tomato plant can produce 10 pounds of tomatoes worth about $35 at store prices — from a seed that costs pennies. Herbs like basil and cilantro are even more dramatic: grocery store herbs cost $12-15 per pound, but a single plant keeps producing for months. The USDA estimates that a well-maintained home garden yields $600-$1,200 worth of produce per year from a 600 square foot plot. The biggest savings come from high-value crops like tomatoes, peppers, herbs, spinach, kale and strawberries where store markups are highest.

Best Crops for Maximum Savings

Herbs deliver the highest dollar-per-plant return because store prices for fresh herbs are extremely high ($12-15/lb). Tomatoes are the classic garden money-saver producing 10+ pounds per plant at $3.50/lb store price. Leafy greens like spinach and kale offer excellent value because they regrow after cutting, giving you multiple harvests from one plant. Strawberries, peppers, and cucumbers round out the top savings crops. Root vegetables like carrots, potatoes and onions save less per pound but are easy to grow in bulk and store well for months after harvest.

Estimating Your Garden Startup Costs

First-year garden costs are highest because you need soil amendments, basic tools and seeds or starts. A typical beginner garden setup costs $80-200 depending on size. Raised beds add $50-200 per bed for materials. However, most of these are one-time purchases — tools last for years, and you can save seeds from this year's harvest for next year. By year two, your only recurring costs are seeds ($10-30), compost ($20-50) and any replacement supplies. Most home gardeners break even within the first growing season and see pure profit by year two.

Tips to Maximize Your Garden ROI

Focus on high-value crops that you actually eat regularly — there is no savings in growing corn if you never eat it. Succession plant lettuce, spinach and radishes every 2-3 weeks for continuous harvests. Save seeds from open-pollinated varieties to eliminate seed costs in future years. Compost kitchen scraps to reduce or eliminate soil amendment purchases. Use companion planting to improve yields naturally without buying extra fertilizer. Start seeds indoors 6-8 weeks before the last frost to get a head start on the growing season and extend your harvest window.