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Little Brown Spots on Lettuce

The depth of red that will eventually develop depends on a variety of factors.

Many AeroGardeners report "little brown spots" on some of the leaves in the Salad Greens Seed Kit.  Perfect! That's the normal pigmentation of red-leaf lettuce, and as the leaves mature  you will see more of it.  This is a red leafed lettuce just starting to show its colors.  The depth of red that will eventually develop depends on a variety of factors such as temperature, light and water quality.