Match spacing to what you will harvest
The Minnesota guide separates full-size plants, mini heads and baby-leaf lettuce. The planner keeps each plant range and the published row range. Changing the harvest goal should trigger a review of both spacing and the succession option.
Understand the editable example
The full-head example uses twelve inches between plants and eighteen inches between rows. A thirty-centimeter square grid is a user layout, not the selected source’s row recommendation. It can be saved as an override without changing the reviewed range.
Reserve space for later batches
A dense early leaf crop and a bed of mature heads use space differently. Assign each planned batch a bed section and its intended harvest stage. The position count describes that chosen stand, not the number of cuts possible from it.
Growing system
Full-size heads
Choose full heads, mini heads or baby leaves before selecting spacing.
Source range: 10–12 in between plants; 18–30 in between rows.
This example selects distances within the cited range. Change them for a reviewed variety or method and retain the override in your plan.
Mini heads
Choose full heads, mini heads or baby leaves before selecting spacing.
Source range: 6–8 in between plants; 18–30 in between rows.
This example selects distances within the cited range. Change them for a reviewed variety or method and retain the override in your plan.
Baby-leaf harvest
Choose full heads, mini heads or baby leaves before selecting spacing.
Source range: 5–5 in between plants; 18–30 in between rows.
This example selects distances within the cited range. Change them for a reviewed variety or method and retain the override in your plan.
Questions growers ask
Will changing from heads to baby leaves also change the calendar?
It should change the selected succession option as well as the spacing system. Their intervals and autumn boundaries are reviewed separately.
Sources and conditions
These sources describe particular climates and growing methods. Use the conditions alongside the numbers.
General nursery and setting-out reference, using a user-supplied spring frost-free date. Nursery duration is measured before setting out.
General intervals under standard growing practices. Crop purpose and protected-cover exceptions matter; these are not harvest guarantees.
Lettuce-specific harvest stages and final spacing are selected from the guide; chicory instructions are not transferred to lettuce.
Spring direct-sowing timing for head lettuce in Utah; distinct from the selected Minnesota spacing source.