- Grand Rapids lettuce was introduced by Eugene Davis of Grand Rapids, MI in the 1800's as a tip burn resistant, large green leaf variety that is quick to mature.
50-60 days. These non-GMO Grand Rapids lettuce seeds grow into large green leaves that are resistant to tip burn. Grand Rapids Lettuce is ready to harvest in 55 days. The Grand Rapids thrives in full sun or partial shade, and can be grown in zones 3-12. The leaves of the Grand Rapids have a mildly sweet flavor. Approx. 16,000 seeds/oz.