The students planted two different varieties of lettuce, both green and red lettuce. The seeds were planted in flats placed in the grow cart at the elementary school, this will allow the students the ability to continually view the plants as they grow. It will take approximately 35-40 days for the lettuce to fully mature. This is a little shorter than if it were planted outside, since we can optimize the growing conditions indoors. Once the lettuce has fully matured the students will harvest the lettuce to make a salad, which they can all share. This way the students play a significant role in the planting, growing, and harvesting of the leafy vegetables.
Leafy vegetables are important because they have the highest amount of nutrition per calorie of any vegetable. They are an excellent source of Vitamin A, beta-carotene, as the lettuce leafs are a storehouse for the plants photochemicals. Leafy greens are also a rich source of vitamin K, which plays an important role in bone health. This is why it has been suggested from many health groups to have a salad of leafy vegetables with each meal.
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