McGregor's Great Lakes Lettuce Vegetable Seed SKU: 135229 MODEL: M6470 Error. try again later You've successfully joined the club $ 2 .99 each Mitre 10 MSAvailable at Mitre 10 MEGA and selected Mitre 10 stores. Variants Tried and true lettuce. Ideal for summer and autumn harvesting. Features and benefits Harvest in approx 70 days.