Grass grows by way of seeds and germination, according to Garden Guides. Germination occurs when the seed receives enough moisture and heat to grow roots and stems. The seed stem produces shoots and blades, and the roots keep the plant anchored while absorbing nutrients. There are different germination times based on the type of grass.
New Mexico State University notes that grass blades grow from a crown point, which is located at the base of the plant. As long as the crown is intact, then the grass continues to grow when combined with warm weather. There are different grass types that grow based on the season. Factors such as shade and moisture have an effect on grass growth. Each blade of grade has a limited lifespan in the same way as a leaf. Individual grass blades have a lifespan of several months.
Cornell University mentions that spring is an ideal time for grass to grow due to moisture, mild temperatures and longer days. Grass roots become damaged when the temperature rises above 85 degrees during the summer. A lack of moisture and drier temperatures results in the death of spring grass, but they grow again once the temperature cools again during the fall.
According to The Garden Counselor, grass grows best in loose soil that is steeped in organic matter and drains easily. Loose soil also provides a lucrative atmosphere for grass seeds to penetrate the soil.