Living things respond to their environment. Response to stimuli is an important characteristic of life. Anything that causes a living organism to react is called a stimulus (plural is stimuli) Stimuli can be external or internal. For instance, if you feel like going to the bathroom, it is an internal stimulus that is controlled by the brain.
Planting leafy green vegetables is easy, but itâs all in the timing. Knowing when to plant greens (such as spinach, kale, and lettuce) depends on your climate and if the leaf vegetables are heat- or cold-tolerant. Greens grow year-round in areas with mild summers and winters, such as the West Coast. For most other areas, spring and fall are the best times to grow greens.
My favorite way to eat the greens is to parboil them whole for 20 to 30 seconds and then let the greens cool to room temperature before dressing them in salad dressing. The Japanese will pair chrysanthemum greens with a sesame dressing; the nuttiness of the dressing is a great contrast to the grassiness of the plant.