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Lactuca sativa Great Lakes Lettuce

Lactuca sativa Great Lakes Lettuce is a classic, All-America Selection winning crisphead variety, renowned for its large, solid heads and exceptional crunch. Growing to about 10 to 12 inches tall with a spread of 12 to 15 inches, this "iceberg" type is perfect for vegetable gardens and larger containers where a traditional, long-lasting salad green is desired. Unlike delicate leaf lettuces, Great Lakes is celebrated for its heat tolerance and resistance to bolting and tip burn, offering a harvest of crisp, refreshing leaves even when summer temperatures begin to climb.

 

Culinary and Practical Uses

  • The thick, water-rich leaves provide the signature "crunch" essential for classic wedge salads, sandwiches, and burger toppings.
  • Its mild, refreshing flavor pairs perfectly with rich, creamy dressings and robust ingredients like blue cheese or bacon without overpowering the dish.
  • Known for its excellent shelf life, the dense heads store well in the refrigerator, remaining fresh and crunchy significantly longer than loose-leaf varieties.

 

Characteristics

  • Foliage: Large, crinkled, medium-green outer leaves protecting a dense, pale white to creamy-yellow interior heart; famous for its snap and crisp texture.
  • Growth Habit: Forms a large, compact, round head; vigorous and adaptable to varying weather conditions, specifically bred to withstand heat better than other icebergs.
  • Flowers: Produces a tall central stalk with small yellow blossoms if allowed to bolt, though harvest typically occurs before this stage to ensure optimal flavor.
  • Seeds: Small, lightweight seeds harvested after the plant flowers and fluff dries; easy to save if isolation distances are observed.

 

Growing Requirements

  • Sun: Thrives in full sun to partial shade; prefers sunny spots in cool weather but benefits from afternoon shade in warmer regions to preserve sweetness.
  • Soil: Requires fertile, well-draining soil rich in organic matter to support the rapid growth of the large heads.
  • Water: Requires consistent, deep watering; fluctuating moisture can cause the heads to split, taste bitter, or develop calcium deficiencies.
  • Spacing: Plant seeds or thin seedlings 12 to 15 inches apart to provide ample room for the large heads to develop fully without rotting.
  • Maintenance: Mulch around the base to retain soil moisture and suppress weeds; harvest when the head feels firm and solid to the touch.

 

Shipping Info

Great Lakes Lettuce seeds ship as fresh, high-quality, viable seeds that are carefully packaged for stability and protection from damage during transit. Prompt shipping supports reliable germination and seasonally appropriate planting.

Growing Zones

3a - 10b
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Low Temperature

20°F

High Temperature

85°F

Fragrant

No

Polinator Required

No

Polinator Friendly

Yes (Flowers attract pollinators if allowed to bolt)

Flower Color

Green Yellow

Growth Rate

Fast

Soil

Fertile, well-draining, loamy soil

Moisture

High, consistent watering

Sun Exposure

Full Sun to Partial Shade

Mature Spread

12 - 15 inches

Mature Height

10 - 12 inches

Bloom Period

Summer

Pruning Time

As needed

Pet Safe

Yes

Perennial / Annual

Annual

Evergreen / Deciduous

Deciduous

Blossomdale
Blossomdale
Blossomdale

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