A young, bright green lettuce seedling with delicate water droplets on its leaves, growing in a pot - TWNN/Shutterstock Are you an impatient gardener? Someone who just can't wait to harvest his crops?

Lettuce (Lactuca sativa) is a popular leafy vegetable in the daisy family. It ranges in color from yellow to dark green but may also have reddish hues. While it’s grown worldwide, China produces the ...