harvesting lettuce

Head Lettuce Succession Planting Program

Full-size lettuce heads are a must-have for the home kitchen, the market stand, CSA boxes and the farmstand alike. Choosing the right varieties is the key to a steady supply. Plan your plantings with the suggested sowing and harvest dates for each variety below, and see our notes about heat tolerance and lettuce downy mildew.

Head Lettuce Succession Planting & Harvesting Chart

key Legend Set out Pick
Lettuce type Cultivar Spring (cool) Summer (warm) Fall (cool) Winter (cold)
Butterhead type
Green-leaved 'Nancy'
'Adriana'
'Milagro'
Red-leaved 'Red Cross'
'Skyphos'
'Marciano'
Loose-leaf
Green-leaved 'Bergam's Green'
'Tropicana'
'Starfighter'
Red-leaved 'New Red Fire'
'Ruby Sky'
'Shirane Sky'
One-cut type
Salanova® (all)
Romaine type
Green heart 'Sparx'
'Sunland'
'Bluerock'
Green-leaved 'Green Forest'
'Salvius'
'Monte Carlo'
'Chalupa'
Red-leaved 'Pomegranate Crunch'
'Thurinus'
Batavia / summer crisp
Green-leaved 'Muir'
'Gordini'
Red-leaved 'Magenta'
'Cherokee'
Mini
All true mini varieties

Notes

Heat Tolerance

Even heat-tolerant lettuces can only take so much. In hot regions and at lower latitudes, such as much of the South and Southwest, many growers pause field plantings of lettuce through the hottest weeks.

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Lettuce Downy Mildew

Lettuce is the primary host of this water mold (Bremia lactucae). The pathogen keeps evolving new races, is most troublesome where lettuce is grown intensively all year, and spreads easily in cool, wet weather. Wind carries the spores, which infect the outer leaves first but can move quickly through a field and continue to develop after harvest. To keep it in check:

  • Pick varieties with the broadest resistance to the downy mildew races (Bl) known in your area.
  • Concentrate prevention and control on your highest-risk plantings (fall and early winter) and locations (high tunnels and under row cover).
  • Trial new varieties to see which perform best, since the races present differ from region to region.
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