
Iceberg Lettuce
Lactuca sativa var. capitata
Basic Information
πΏ Family: AsteraceaeπΊοΈ Zone: 2-11
Other Names:
- Crisphead Lettuce
π‘οΈ Ideal Temperature : 60Β°F β 70Β°F
π₯ Heat Tolerance: Up to 80Β°F
βοΈ Cold Tolerance: Down to 32Β°F
π± Type: Annual
Layers
- Ground
Functions
- Edible
- Ground Cover
Pests
No pests associated with this plant.
Description
Iceberg lettuce is an annual vegetable known for its crisp, pale green leaves forming dense, cabbage-like heads. Each head typically measures 15-23 cm (6-9 inches) in diameter. Introduced in 1894, it remains popular for its mild flavor and crunchy texture. While not as nutrient-dense as darker leafy greens, it provides hydration and a satisfying crunch to salads and sandwiches. Iceberg lettuce thrives in cooler temperatures and may bolt or fail to form tight heads in warmer climates.
ππ§ Sun and Water Requirements:
Prefers full sun exposure but can tolerate partial shade, especially in warmer regions. Requires consistent moisture; soil should be kept evenly moist but not waterlogged. Mulching helps retain soil moisture and maintain cooler soil temperatures.
βοΈπ« Methods to Propagate:
Primarily grown from seeds. Sow seeds directly into the garden 1/8 inch deep as soon as the soil can be worked in early spring or late summer for a fall crop. Thin seedlings to 30 cm (12 inches) apart to allow room for head development.
π§βπΎπ©βπΎ When to Harvest:
Harvest when heads are firm and reach full size, typically 70-80 days after planting. Cut the head at the base with a sharp knife. For best flavor and texture, harvest in the morning before the day warms up.
Purpose
- **Edible**: Provides a crunchy texture and mild flavor, ideal for salads, sandwiches, and garnishes.
- **Ground Cover**: Dense planting can help suppress weeds and protect soil from erosion.