Garden Yield Calculator
The harvest, estimated before it exists — plants times pounds, less the tax the slugs and the weather collect.
Garden Yield Calculator
Results recalculate instantly on every keystroke. Nothing you type is transmitted.
What this result does not account for
- Results are a model, not a quotation — an institution's own figures govern.
- Every input is an assumption; change one and the answer changes with it.
- Rounding is applied only at the display layer, so totals may differ by a cent from a statement that rounds each line.
In short: 24 plants at 0.75 lb each is 18 lb — and after the 15% garden tax (pests, weather, and everyone who “just tries one”), 15.3 lb reaches the kitchen. Add a market price and the crop gets a value; the arithmetic holds the line between the catalog's promise and the basket's truth.
Formula
gross = plants × lb per plant; net = gross × (1 − loss%); value = net × price per lb
Yield estimation is multiplication with a humility term: plants times the variety's per-plant poundage, discounted by whatever the season collects — insects, blight, hail, and the neighbor's kid who adores your snap peas. Per-plant figures are catalog bids, not bonds: tomatoes promise 8-15 lb, peppers 3-6, zucchini 6-10 whether you wanted it or not. The page keeps the promise and the discount on separate lines so both stay visible. What the surplus becomes is a preserving question — the jam sugar page takes the overflow.
Worked Example
- Enter the plant count and the variety's per-plant yield.
- Set the garden tax — the season collects it either way.
- Add a price if the crop needs a value; otherwise let it be food.
Defaults: 24 × 0.75 lb = 18 lb gross; × 0.85 after 15% = 15.3 lb net. Price blank — the market line waits honestly.
Strengths & Limits Of This Model
Where this engine is strong
- Runs entirely in your browser — no figure you type is transmitted or stored.
- Shows the full working, so every number can be traced and challenged.
- Free, unmetered and free of affiliate incentives.
Where it stops
- Generalised assumptions cannot capture every individual circumstance.
- Jurisdiction-specific rules and mid-year changes may not be reflected.
- A model output is not a substitute for a professional review of your position.
Practical Use Cases
Spring planning
how many rows
Preserving plans
the jam arithmetic
Market stalls
the crop, priced
Methodology & Editorial Standards
Computation runs in IEEE-754 double precision at full internal precision; rounding to two decimal places occurs strictly at the display layer, so no cumulative drift enters the result. All monetary outputs use accounting presentation — grouped thousands, two decimals, negatives in parentheses — so figures can be transcribed directly into a model or working paper. Division-by-zero and out-of-domain inputs return an em-dash rather than a misleading number.
This engine was reconciled against an independent reference implementation and hand-verified for the worked example above before release. Our full five-stage review process is published on the About Us page.
Disclaimer. This calculator is provided for informational and modelling purposes only and does not constitute financial, tax, legal, medical, or engineering advice. Verify all figures with a qualified professional before acting on them.
Garden Yield Calculator — 8 Expert FAQs
8 analyst-written answers to the questions practitioners actually ask — optimised for voice and answer-engine retrieval.
How many pounds does one tomato plant yield?
A healthy indeterminate tomato promises 8-15 lb across a season; compact determinate types run 5-10; cherries shower dozens of small fruit that sum to 6-10 lb. Weather, soil, and pruning move the number more than variety does. Enter the middle of the range and let the garden tax field carry the uncertainty — estimating 15 lb and losing 15% beats estimating 20 and calling the shortfall bad luck.
What is the “garden tax”?
The share the season collects before you do: slugs, hornworms, blight, hail, and every visitor who “just tries one” pea pod. Fifteen percent is a fair typical rate for a tended bed; 25% is honest for unnetted brassicas; zero is optimism, which the page permits as a chip and nothing more. The discount is applied once, openly, to the gross — the arithmetic never hides the difference between the catalog and the basket.
What are good per-plant yield figures?
Workable middles: tomatoes 8-15 lb, peppers 3-6, zucchini 6-10 (plan accordingly), cucumbers 3-5, bush beans 1-2, lettuce 0.5-1, potatoes 2-5 lb per plant seeded. The catalog's number is a bid under ideal conditions; your soil bids back. Enter the middle, set the tax honestly, and keep a pencil note of the actual harvest — this year's real number is next year's best estimate, which is more than any catalog can promise.
When does the price field matter?
When the crop has a market — stall tables, farm stands, or the honest comparison against grocery organic. At $3.00 a lb, the default 15.3 lb net is worth $45.90, which funds next year's seed and then some. Leave it blank and the page says so instead of inventing a value: food is the point even when money is not. The line is a price, not a profit — the seed, the water, and the April weekends were real costs too.
How do I plan the preserving from these numbers?
Work backward from the jar: a batch of jam takes roughly 4 lb of fruit, so the default 15.3 lb net is three batches plus fresh eating. The page prices the harvest; the preserving arithmetic — sugar ratios, pectin, the works — lives on the jam sugar page, which is where the surplus goes. Enter the variety the bed actually grows, set the tax the season actually collects, and the net pounds are the number the preserving plan is built on.
Does succession planting change the math?
It multiplies the rows, not the formula: two sowings of the same crop two weeks apart are just two entries, or one entry with the plant counts added. What succession changes is the calendar — the harvest arrives in waves instead of one overwhelming week — and the arithmetic is happy to be run per wave. Keep the tax honest on each entry; early and late sowings meet different weather, and the season's collection schedule is its own kind of budget.
Why did my actual harvest miss the estimate?
Because the estimate was a multiplication and the season was a story: heat that stalled pollination, rain that split the fruit, the week you traveled during the zucchini coup. The page's honesty is that the tax field is yours to set — if last year collected 30%, enter 30 this year and the estimate learns. Recording actuals per variety and feeding them back is the only upgrade the arithmetic respects; everything else is the catalog talking.
Is more plants always more harvest?
Per plant, no — crowding taxes yield invisibly. Ten spaced tomatoes out-pick twenty crammed ones, because light and airflow are ingredients too. The arithmetic assumes the plants you count are grown properly; if the bed is tight, raise the garden tax rather than flattering the plant count. Spacing is its own skill with its own planning tools — this page estimates the basket, and the basket assumes the garden was given room.