The varieties in this custom mix will all be the perfect 1"–2" size at the same time, with an appealing flavor and texture combination as well as a beautiful color presentation. Nutritious microgreens can be grown at any time of the year, and are a nutrient-packed way to get your "green fix" in the dead of winter. Move containers as needed for best light exposure and temperature (65°–75°F). Jazzy Mix microgreens are ready to harvest in about 12 to 14 days after sowing, when they have cotyledons (first leaves), or when the first true leaves (second set of leaves) have begun to form, depending on preference.