Succession sowing without creating a glut
Succession sowing is not “sow every two weeks forever.” It is a way to spread a crop across time by matching the next batch to household use, the progress of the previous batch, available space, and the weather.
Working rule: start with a small batch, record what happened, and sow again only when the previous batch is established, being harvested, or clearly unlikely to meet the next need.
Which crops benefit most?
| Good candidate | Why | When not to force succession sowing |
|---|---|---|
| Lettuce, salad leaves, radish, spinach | They mature quickly, are perishable, and can be used in small quantities. | Heat, drought, or bolting makes the next batch likely to fail. |
| Peas, beans, carrots | Small batches can spread the harvest and reduce one large peak. | The crop needs a long season or the remaining weather window is too short. |
| Tomatoes, peppers, pumpkins | Usually produce over a longer period or store better. | Planting more batches would exceed space or harvest capacity. |
Build the batch plan
- Estimate use: decide how much the household can eat or preserve in one week. Treat this as a starting estimate, not a promise.
- Choose the smallest useful batch: a short row, a tray, or a few stations is easier to repeat than a full packet.
- Record the crop and conditions: variety, sowing date, location, weather, watering, and expected maturity.
- Watch the crop, not the calendar: the next batch may be ready when the first has several true leaves, is being harvested, or is slowing under heat.
- Leave room: reserve the next strip or container before sowing. If there is no space, do not create another batch.
A practical tracker
| Batch | What to record | Decision |
|---|---|---|
| 1 | Date, variety, amount, space, weather, use expected. | Wait for emergence and actual household use. |
| 2 | Batch 1: true leaves, harvest start, losses, surplus. | Sow, delay, reduce the quantity, or change cultivar. |
| 3 | Space left, forecast, pest pressure, remaining season. | Continue only if the likely harvest still has a use. |
Worked example: salad leaves
A household uses about one small bowl of leaves twice a week. Start with a short row rather than the whole packet. If emergence is even and the first row is growing normally, sow a second short row when the first has established. During cool weather, the interval may lengthen; during warm, moist weather, plants may mature together or bolt, so reduce the batch, move to a cooler site, or stop until conditions improve.
When the plan fails
- Two batches mature together: weather compressed the schedule. Harvest promptly, reduce the next batch, or choose a different cultivar.
- There is a shortage: the batch was too small, germination failed, or the crop was harvested faster than expected. Record the loss before doubling the next sowing.
- Seedlings bolt: heat, drought, stress, or day length may be involved. Do not solve every bolting problem by sowing more.
- The bed is full: stop. A succession plan that has no physical space is only a shopping list.
End the season with a useful record
At the end of the run, compare the planned interval with the actual harvest interval. Note whether the first batch was still producing, whether the household used everything, and whether weather or pests compressed the window. Keep the note with the seed packet or garden plan. Next season, change one variable at a time: smaller batch, later sowing, different position, or different variety. This prevents a single unusual year from turning into a rigid rule.
Sources and next reading
The RHS succession-sowing guide supports small batches, flexible intervals, crop selection, and monitoring the previous sowing rather than following a fixed schedule. The RHS vegetable seed guide covers sowing methods and limited-space approaches. This page adapts those principles into a household-use tracker; it is not a crop-specific calendar.