Ice berg lettuce is also known as Ice lettuce. This variety forms a firm and dense head with light green leaves. The leaves are crispy and firm. This variety can bold easily with warm weather and drought. This variety should be sown in the early spring or in a mild climate in the autumn. 
     
                 
                    
                    
    Outdoor sowing: march - august
Sowing depth: ½ cm
Germination: 7-10 days
Germination temp.: 15-18 °C
Planting distance:  20 - 30 cm
Planting position: sunny
Days till harvest: 45 - 55
 
Outdoor sowing can start from march till august on a prepared     seedbed. Cover the seeds lightly with some soil, because lettuce is a     light germinator. Keep moist and weed free. Transplant the seedlings     after 3 - 4 weeks. Keep them 20  -  30 cm apart, to leave room for the     heads. Sow small amounts with regular intervals to provide a  continuous    harvest. Protect the seedlings and plants from sn