70 days. NON-GMO, OPEN POLLINATED, HEIRLOOM.
Crisphead Iceberg seeds grow into green heads of lettuce that are ready to harvest in 70 to 79 days. The Iceberg lettuce is one of the most popular varieties of crisphead lettuce and can be grown in zones 4-9. The leaves of the Iceberg have a mildly sweet flavor. You'll see this one in the produce section of most grocery stores.