SowWindow
My plan

Vegetables / Lettuce

Cool-season crops

Lettuce succession planting plan

Choose full-size heads or baby leaves before creating a sequence. The reviewed interval and latest-sowing reference change with that choice.

Plan repeat sowings of Lettuce

Editable example
Growing purpose

When enabled, the earlier of your end date and the source reference sets the last possible batch. Turn it off only to make a deliberate custom schedule.

Open the planner →

4 sowing batches

Full-size head lettuce · 10 days

  1. Batch 1 Direct sow
  2. Batch 2 Direct sow
  3. Batch 3 Direct sow
  4. Batch 4 Direct sow

The end date is inclusive. Cross-year schedules keep the correct calendar year.

Next would be May 11, 2027; it is after your end date and is excluded.

The source stopping reference (Aug 20, 2027) is applied. Your own earlier end date still takes priority.

Sources and conditions

Choose the harvest purpose first. The baby-leaf cutoff excludes protected-cover extensions.

  • The succession source assumes standard growing practices. Variety, heat, daylight and protection can change useful sowing dates.
Johnny’s Selected Seeds · Succession Planting Charts for Vegetables ↗

This is the source chart’s latest-sowing reference under the stated conditions. It does not promise maturity or a harvest by that date.

  • The succession source assumes standard growing practices. Variety, heat, daylight and protection can change useful sowing dates.
  • Choose the harvest purpose first. The baby-leaf cutoff excludes protected-cover extensions.
Johnny’s Selected Seeds · Succession Planting Charts for Vegetables ↗

These are source-specific stopping references. They are not a promise of harvest before frost. Review crop, variety and cover conditions.

These sources describe particular climates and growing methods. Use the conditions alongside the numbers.

Choose a matching interval and purpose

The selected chart uses ten-day spacing between full-head sowings and seven-day spacing for baby leaves. Keep the option attached to every batch so a later spacing edit does not leave the wrong harvest purpose in the calendar.

Johnny’s Selected Seeds ↗

An autumn example with a stated anchor

If you enter October 15, 2027 as first frost, the chart’s full-head boundary is August 20 and its baby-leaf boundary is September 17. These are last-sowing references, not promised harvest dates. The baby-leaf rule explicitly excludes extensions made with protected cover.

Johnny’s Selected Seeds ↗

Allocate a bed section to each batch

For a user-selected full-head start of July 21, ten-day batches fall on July 21, July 31, August 10 and August 20 before that boundary. An earlier user end date shortens the list. Reserve enough space for the batches that will be growing together.

Questions growers ask

Can I keep a fourteen-day interval from an older plan?

Yes. Save it as a user override, keep the chosen harvest purpose and review its end date. Fourteen days is not the selected chart default for either lettuce option.

Sources and conditions

These sources describe particular climates and growing methods. Use the conditions alongside the numbers.

Seed-Starting Date Calculator ↗

General nursery and setting-out reference, using a user-supplied spring frost-free date. Nursery duration is measured before setting out.

Succession Planting Charts for Vegetables ↗

General intervals under standard growing practices. Crop purpose and protected-cover exceptions matter; these are not harvest guarantees.

Growing lettuce, endive and radicchio in home gardens ↗

Lettuce-specific harvest stages and final spacing are selected from the guide; chicory instructions are not transferred to lettuce.

How to Grow Lettuce in Your Garden ↗

Spring direct-sowing timing for head lettuce in Utah; distinct from the selected Minnesota spacing source.