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Worked examples

Worked planning examples

Four illustrative plans calculated with the same code that runs the tools. Each shows the inputs, the method, the result and what to do with it, and opens in the tool so you can change it.

Examples
4, illustrative
Calculated
September 30, 2026
Use with
Bed planner · Soil calculator

A 4 × 8 ft bed of salad and roots

Inputs
Bed
8 × 4 ft inside, blocks (equal spacing both ways)
Crops, in list order
Head lettuce 8 at 12 in, bulb onion 24 at 6 in, carrot 48 at 3 in, beet 16 at 6 in
Trellis
None

Method. Each crop gets a strip that runs the full 8 ft length. The planner counts how many plants fit along 96 in at that crop’s spacing, then adds whole rows until the quantity is met.

Unallocated · 8 ft × 1 ft8 ft length4 ft width12 in12 in6 in6 in12 in2 ftHead lettuce8 · 12×12 inBulb onion24 · 6×6 inCarrot48 · 3×3 inBeet16 · 6×6 in
Example 1Plan sheet drawing for this example: 96 plants in four strips, with the unallocated strip hatched along the front.

Result

CropWantedPlacedUnmetStrip from back edge
Head lettuce8800 in–12 in
Bulb onion2424012 in–24 in
Carrot4848024 in–30 in
Beet1616030 in–36 in

All 96 plants fit. The four strips use the back 36 in of the bed and leave a 12 in strip along the front unallocated (8 ft²). There are also 24 vacant places inside the strips: the onion strip has room for 32 but only 24 were requested, and the carrot strip has room for 64 with 48 requested.

What to do with it

The planner’s “What to do next” section reports what the spare space could hold without moving anything: 8 more head lettuce, or 40 more bulb onion, or 144 more carrot, or 32 more beet. Each figure is an alternative, not a total. Whether to use that space now, later in the season or not at all is a gardening decision the planner cannot make; it does not model timing.

Open this example in the bed planner

Peas along a trellis on a 3 × 10 ft bed

Inputs
Bed
10 × 3 ft inside, blocks
Crops, in list order
Garden pea 30 at 6 in, bush bean 20 at 6 in, radish 64 at 3 in
Trellis
Garden pea, along the back long edge

Method. The trellis crop is moved to the first strip and limited to one row, so it can use the full length but never a second row. The other crops follow in list order.

Unallocated · 10 ft × 1.5 ftTRELLIS · BACK EDGE10 ft length3 ft width6 in6 in6 in18 in2 ftGarden pea20 · 6×6 inBush bean20 · 6×6 inRadish64 · 3×3 in
Example 2The pea row along the dashed trellis line holds 20 of 30 requested peas.

Result

CropWantedPlacedUnmetStrip from back edge
Garden peatrellis row3020100 in–6 in
Bush bean202006 in–12 in
Radish6464012 in–18 in

104 of 114 plants placed; 10 peas are unmet. One row along a 120 in length has 20 places at 6 in. The beans and radishes fit, and 18 in is left unallocated.

What to do with it

A wider bed would not help: the planner reports that extra width alone cannot place them all, because the trellis crop is limited to one row. It would take an inside length of 180 in (15 ft) to fit 30 peas in a single trellis row. On this bed, the realistic choices are to plan 20 trellised peas, or add a second pea block without the trellis mark so it gets its own strip. The pea preset uses block spacing; check the support needs of your variety.

Open this example in the bed planner

The same crops, two spacing methods

Inputs
Bed
8 × 4 ft inside
Crops, in list order
Pepper 4, bush bean 16, head lettuce 6
Compared
Equal-distance block presets against traditional-row presets

Method. The quantities and bed stay the same. Only the spacing method changes, which reloads each crop’s preset from a different source: block presets from Colorado State University Extension, row presets from University of Georgia Extension.

Unallocated · 8 ft × 1 ft8 ft length4 ft width18 in6 in12 in12 in2 ftPepper4 · 18×18 inBush bean16 · 6×6 inHead lettuce6 · 12×12 in
Unallocated · 8 ft × 1.5 ft8 ft length4 ft width30 in18 in2 ftPepper4 · 24×30 in
Example 3Left: blocks, 26 of 26 placed. Right: traditional rows, 4 of 26 placed.

Result

CropBlock presetPlacedRow presetPlaced
Pepper18 × 18 in424 × 30 in4
Bush bean6 × 6 in164 × 36 in0
Head lettuce12 × 12 in612 × 30 in0

Blocks place all 26; rows place 4. In row mode the pepper row alone takes a 30 in strip, and the bean row distance of 36 in does not fit in the 18 in that remains, so neither beans nor lettuce get a strip.

What to do with it

Neither answer is wrong: they describe different ways of growing. Row distances belong to long rows with space between them; block spacing assumes you reach the bed from its edges. Choose the method that matches how you will actually plant, and use the row presets only if you are laying out rows. The planner reports that the row version would need a bed 96 in (8 ft) wide. Read more about choosing a method.

Open the block version in the bed planner

Soil for three top-ups and one new bed

Inputs
Beds
Three existing 8 × 4 ft beds, each needing a 2 in top-up; one new 6 × 3 ft bed filled 10 in deep
Bags
1.5 ft³, no allowance

Method. Each entry is length × width × added depth × number of identical beds. The entries are added together and the total is divided by the bag volume, rounding up once.

6 ft3 ft10 in deep
Example 4The new bed’s 10 in layer drawn to true proportion. The three top-ups are thin 2 in layers of the same footprint type.

Result

EntryVolumeBags if bought separately
3 × top-up, 8 × 4 ft × 2 in16 ft³ (5.333 each)4 each, 12 total
New bed, 6 × 3 ft × 10 in15 ft³10
Combined order31 ft³ · 1.148 yd³ · 0.878 m³21 (22 if bought bed by bed)

31 ft³, or 21 bags of 1.5 ft³. Each top-up needs 5.333 ft³, which is 3.56 bags, so buying for each bed separately means rounding up three times. Pooling the same material into one order rounds up once and saves 1 bag. With a 10% purchasing allowance the order becomes 34.1 ft³ and 23 bags.

What to do with it

Combine beds only when they take the same material; if the new bed gets a different mix, calculate it as its own order. The result also lists other bag sizes: 31 bags of 1 ft³, 21 bags of 1.5 ft³, 16 bags of 2 ft³, 11 bags of 3 ft³. Check the volume printed on the bag, not its weight.

Open this order in the soil calculator

About these examples

They are illustrative scenarios chosen to show how the tools behave, not records of real gardens or user submissions. All figures were produced by the same calculation code as the tools, using the cited presets without edits. Your own variety, spacing and bed may give different numbers; open an example and change it to see how.