Growing Head Lettuce

Organic Vegetable Gardening
Fact Sheet

Botanical name: Lactuca sativa var. capitata


Head Lettuce

Iceberg Lettuce

Planting time: SP,FA
Seeds per ounce: 25000
Ounces per square foot: .008/100 sqft
Minimum legal germination rate: 80%
Germination type: Short Germinating seeds

Growing Head Lettuce is very easy and is quick to cultivate. Lettuce prefers cool temperatures, and most varieties cannot tolerate frost. Lettuce likes well drained and moist soil. In warm climates it’s a good idea to grow lettuce in partial shade.

The term Head Lettuce describes those varieties on which the leaves grow dense in the center of the plant.


In garden spacing (inches): 12
In flat spacing (inches): 1
Planting depth (inches): Lightly cover seeds with soil
Maximum number of plants per square foot: 1.5
Nutrient relationship:: Heavy Feeder


Days to maturity: 77-91
Harvesting period (days): 7-21
Minimum yields in pounds /square foot: .75


Diseases: Alfalfa Mosaic Virus, Alternaria Leaf Spot, Anthracnose, Aster Yellows, Bacterial Leaf Spot, Bacterial Soft Rot, Beet Western Yellows Virus, Beet Yellow Stunt Virus, Biden Mosaic Virus, Big Vein, Bottom Rot, Broadbean Wilt Virus, Cercospora Leaf Spot, Corky Root, Cotton Root Rot, Cucumber Mosaic Virus, Damping-Off, Downy Mildew, Drop, Gray Mold, Head Rot, Leaf Drop, Lettuce Big Vein Virus, Lettuce Mosaic Virus, Lettuce Necrotic Yellows Virus, Lettuce Speckles Virus, Powdery Mildew, Rust, Septoria Leaf Spot, Southern Blight, Sowthistle Yellow Vein Virus, Stemphylium Leaf Spot, Tobacco Rattle Virus, Tobacco Ringspot Virus, Tomato Spotted Wilt Virus, Turnip Mosaic Virus, Varnish Spot, Wilt And Leaf Blight.
Insect pests:(Insect Pest Finder) Army Cutworm, Bean Aphid, Beet Armyworm, Beet Leafhopper, Cabbage Looper, Corn Earworm, Cutworm, Field Cricket, Green Peach Aphid, Greenhouse Whitefly, Imported Cabbageworm, Leafminer, Saltmarsh Caterpillar, Slugs and Snails


Bibb, Cimmaron, Great Lakes, Green Towers, Iceberg, Ithaca, Paris Island

Organic Gardening Seed and Plant Sources:



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