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.
Sod. You can lay sod any time of the year, although it's best to plant according to the active growing period of the grass species -- mid-to-late spring for warm-season grasses and early spring or early fall for cool-season grasses -- and to avoid laying sod in exceptionally hot and cold temperatures.arm-and Cool-Season Grass Seed. It's too late to plant warm-season grass species when the risk of frost is less than 60 days away in warm climates and less than 90 days away in cooler climates.