Does Growing Your Own Food Save Money? A Simple Test

Yes, growing your own food can save money—but it is not automatic.

A productive garden may deliver food worth more than the seeds, water, compost, and supplies used to grow it. However, expensive raised beds, unused produce, poor harvests, and the value of your time can quickly change the result.

The simplest way to find out is to run a small test using your own costs and grocery prices.

The simple garden savings test

Track one crop—or one small growing area—for a full season.

Use this formula:

Garden savings = value of food harvested − total growing costs

If the result is positive, the garden saved money before counting your time. If it is negative, buying the same food would have been cheaper.

Want to include your labor too? Use:

True financial return = garden savings − value of your time

Counting time is optional. Gardening may replace another hobby rather than paid work, so an hourly cost will not make sense for everyone. That distinction matters: a review published in the Journal of Extension found that home gardens were generally profitable when labor was excluded, while results varied with local conditions, gardening methods, and crop choices (Langellotto, 2014).

Step 1: Record every cost

Include anything purchased specifically for the garden:

• Seeds and young plants
• Compost, potting mix, and fertilizer
• Containers, stakes, ties, and netting
• Pest-control products
• Extra water
• Tool replacements
• Allotment or community-garden fees

Do not charge the full cost of a reusable item to one harvest. If a container costs 30 in your currency and should last five seasons, count 6 per season.

Already own a shovel or watering can? Its original price is a past expense, so leave it out unless it needs replacing.

This is where beginners can accidentally make gardening look expensive. A new raised bed, premium soil, decorative pots, and several tools create a large first-year bill. The same garden may cost much less in later seasons.

Step 2: Weigh or count what you actually use

Record each usable harvest—not everything the plant produces.

You could track:

• Tomatoes and zucchini by weight
• Lettuce by head
• Herbs by bunch
• Cucumbers, peppers, and eggs by item

Food that spoils, is left on the plant, or is given away does not reduce your grocery bill. Giving food away may still be worthwhile, but it is not a household saving.

Keep the units consistent. If your shop sells spinach by a 200-gram bag, record your spinach in 200-gram portions or convert both figures to a price per kilogram. University of Florida guidance recommends comparing the garden and shop costs using the same unit, because one crop may save money while another costs more to grow (UF/IFAS Extension).

Step 3: Find the replacement value

Ask a practical question: What would this harvest have replaced in your shopping basket?

Use the current unit price from the shop where you normally buy food. Compare like with like:

• Loose tomatoes with loose tomatoes
• Fresh basil with fresh basil
• Organic produce with organic produce, if that is what you would normally buy
• A standard supermarket courgette with a similar courgette—not a premium specialty variety

Do not use the highest price you can find. The goal is to estimate avoided spending, not to give the harvest an impressive value.

For example, imagine you harvest 4 kilograms of tomatoes. Similar tomatoes cost 3 per kilogram at your usual shop.

Harvest value: 4 × 3 = 12

If the seeds, compost, plant food, water, and share of reusable supplies cost 7:

Garden savings: 12 − 7 = 5

That is a hypothetical saving of 5 before labor.

Step 4: Decide whether to count your time

There are two useful answers:

1. Cash saving: Did the harvest reduce spending after material costs?
2. Economic return: Was the saving worth the time spent?

Suppose the hypothetical tomato crop saved 5 but required three hours of work. If those hours replaced paid work, the garden probably did not make financial sense. If they replaced leisure time and you enjoyed them, the 5 remains a real reduction in household spending.

Track both figures if you are unsure:

Result	Calculation
Cash saving	Harvest value minus growing costs
Return after labor	Cash saving minus hours worked × chosen hourly value

This avoids pretending your time is free while still recognizing that a hobby does not need to earn an hourly wage.

Which foods are most likely to save money?

The best candidates tend to be foods that are expensive to buy, productive in your conditions, and regularly used at home.

These often include:

• Frequently harvested herbs
• Salad leaves
• Tomatoes
• Climbing beans
• Chillies and specialty peppers
• Berries from established perennial plants

That is not a universal ranking. Climate, pests, available sunlight, water prices, and local shop prices all affect the result. A crop suited to local conditions can require fewer interventions and produce a better yield; current Virginia Cooperative Extension trials, for example, evaluate varieties partly for yield and local performance (Virginia Cooperative Extension).

Start with food you already buy. Growing a large crop that nobody wants to eat does not create grocery savings.

What is usually harder to grow cheaply?

Savings may be limited when a crop:

• Needs a large amount of space
• Takes months to produce a small harvest
• Is already inexpensive at local shops
• Requires costly soil, heating, lighting, or pest protection
• Produces more food than you can use
• Performs poorly in your climate

Potatoes, onions, and carrots can still be enjoyable and useful crops. But if they are cheap in your area, they may struggle to beat supermarket prices once every input is counted.

How to improve the result

Keep the experiment small during the first season. One container of herbs or a short row of salad leaves provides useful information without a large setup bill.

You can also improve the numbers by:

• Reusing containers with drainage holes
• Borrowing tools
• Growing from seed when practical
• Making compost from suitable household and garden material
• Choosing varieties recommended for your area
• Planting smaller amounts at intervals
• Preserving or freezing genuine surpluses
• Keeping notes on yield, costs, and crop problems

Do not buy equipment simply because it might increase the harvest. Calculate how many seasons it would take for the expected savings to repay the purchase.

So, is growing food worth it?

It can be—especially when you keep setup costs low, grow foods you normally purchase, and use most of the harvest.

But the honest answer comes from your records:

Value what you ate, subtract what you spent, and compare the result with the time and space required.

Even a garden that does not save money may still offer fresher produce, enjoyable outdoor time, or varieties unavailable nearby. Those are valid benefits. They just belong beside the financial result, not inside it.