Lettuce 'Great Lakes'

Needs moderate water and is a heavy feeder due to its relatively weak and inefficient root system ¹. Its main requirement is for nitrogen, but it also needs moderate amounts of potassium and phosphorus ¹.

Plant in a location that enjoys partial sun and remember to water moderately. Keep in mind when planting that Great Lakes is thought of as half hardy, so protect with a row cover whenever the temperatures drop. Great Lakes needs a loamy soil with a ph of 6.2 to 6.8 (weakly acidic soil).

Plant in spring or summer.

Try to aim for a seed spacing of at least 5.85 inches (15.0 cm) and sow at a depth of around 0.49 inches (1.25 cm). Soil temperature should be kept higher than 4°C / 39°F to ensure good germination.

By our calculations, you should look at sowing Great Lakes about 60 days before your last frost date.

Ensure that temperatures are mild (minimum night temperatures should be around 4°C / 39°F) and all chance of frost has passed before planting out, as Great Lakes is a half hardy plant.

By our calculations, you should look at planting out Great Lakes about 45 days before your last frost date.

80-100 days to harvest ¹.

This variety tends to be ready for harvesting by early autumn.

¹ Great Lakes Lettuce on the Smart Gardener