- Developed in the 1960's, Great Lakes 118 is an improvement from the original Great Lakes variety with better heat tolerance and bolt resistance.
14 to 16 days"possibly 21 days if growing to baby green stage. Non-GMO Great Lakes 118 Crisphead Lettuce (Lactuca sativa "great lakes 118"), is also known as Great Lakes or Head Lettuce. An easy to grow, heat resistant type of lettuce, perfect for beginners. Annual in zones 3-9. Excellent on sandwiches, and in salads. Great for the cool-season.