Separate sowing, thinning and retained plants
The USU range of 12–24 inches describes final spacing between retained okra plants, varied by plant size. It does not describe how closely seed is sown. Initial close sowing and the plants you keep after thinning are different counts, so keep them as separate numbers in your notes.
For planning and marking, work from the retained-plant count. Decide which end of the 12–24 inch range fits the plant size you expect, label that choice clearly, and record it as your selected center spacing. The source gives a range, not a rule that every garden must use the same interval.
- Write down the USU range of 12–24 inches as the thinning reference.
- Choose one interval within that range for a clearly labeled scenario and note why you chose it.
- Keep your sowing count separate from your retained-plant count.
Source context: Utah State University Extension
Worked example: one 144-inch row
The worked example uses a measured row 144 inches long, a selected center spacing of 18 inches, and 9-inch margins at both ends. With those inputs, the first plant center sits at 9 inches and the last at 135 inches, giving 8 retained plants. This is a geometrical example of placing plants at even centers, not a crop recommendation to use 18 inches.
The counted item is retained plants, meaning the final plants kept in that row after thinning, not seeds sown. The 18-inch interval falls inside the USU 12–24 inch range, but the example is labeled as one scenario only. If you change the row length, center interval or end margins, the count changes accordingly.
- Measure the actual row length before counting.
- Set both end margins so the first and last plant centers are defined.
- Count positions at the selected center interval and confirm the total matches your retained-plant target.
Source context: Utah State University Extension
Rows, raised beds and what one row does not cover
USU gives 36 inches between rows as a reference. A single counted row is not an entire garden layout: it tells you how many retained plants fit along one measured line, not how many rows fit in a bed or how the whole garden is arranged.
Access paths, supports or stakes, adjacent rows and mature plant habit must be chosen separately for your site. The source notes do not give distances for those decisions, so record them as open choices rather than filling in numbers. If you grow in a raised bed, treat the bed width and row arrangement as separate planning questions from the within-row plant count.
- Use the 36-inch row reference when noting row-to-row context, and label it as a source reference.
- List access, support and adjacent-row needs as separate decisions to resolve.
- Keep the counted row as one element in the layout, not the full plan.
Source context: Utah State University Extension
Using the row calculator for this count
The linked row calculator can count this exact row length, center interval and both end margins, in inches or centimeters. Enter the measured length, the selected center spacing and the margin at each end, then check that the result is described as retained plants.
Compare the calculator result with your hand count from the worked example method. If the numbers differ, check the units and whether both end margins were entered before changing the spacing choice.
- Enter row length, center interval and both end margins in one consistent unit.
- Confirm the output is a retained-plant count.
- Recheck units and margins if the result does not match your hand count.
Source context: Utah State University Extension
Check your measured example
One measured 144-inch row, with selected 18-inch centers and 9-inch margins at both ends. Count 8 retained plants.
Reference and growing system: USU describes thinning okra to 12–24 inches apart depending on plant size, with rows 36 inches apart. Initial close sowing and retained plants are different counts.
| Quantity | Calculated result |
|---|---|
| Usable row length (in) | 144 |
| Selected center spacing (in) | 18 |
| Margin at each row end (in) | 9 |
| Positions in this row | 8 |
| First center from row start (in) | 9 |
| Last center from row start (in) | 135 |
| What is being counted | retained plants |
The worked example is a geometrical placement check: a 144-inch row with 18-inch centers and 9-inch margins at both ends yields 8 retained plants, with centers at 9 and 135 inches. The 18-inch interval sits inside the USU 12–24 inch thinning range, but the example is one labeled scenario, not crop advice. It counts retained plants after thinning, not seeds sown, and it does not describe a whole garden layout.
Count this row in the spacing calculator ↗Example inputs explain the method. Review the source context, chosen cultivar and actual site before planting or ordering.
Your before-you-plant checklist
- Retained-plant count is recorded separately from sowing count.
- Selected center spacing is labeled as one scenario within the USU 12–24 inch range.
- Row length and both end margins are measured in the same unit.
- The 36-inch row reference is noted as context, not as a full bed layout.
- Access, support and adjacent-row decisions are listed as separate open choices.
Questions that come up while planning
What spacing does USU give for okra?
USU describes thinning okra to 12–24 inches apart depending on plant size, with rows 36 inches apart. The 12–24 inch range is for retained plants, not for initial close sowing.
Does the 8-plant example mean I should use 18 inches?
No. The 8-plant result is a geometrical example using a 144-inch row, 18-inch centers and 9-inch end margins. It shows how the count is calculated, not a recommendation to use that interval.
Is one counted row the same as my whole garden layout?
No. A counted row gives retained plants along one measured line. Access, supports, adjacent rows and mature habit must be chosen separately, and the source notes do not provide distances for those choices.
Sources & method
Horticultural guidance is linked to its original source and regional context. Geometry and unit conversions are calculated separately. Read how we prepare and check a page.
- Okra in the GardenUtah State University Extension