Types of Crabgrass

Crabgrasses are weed-like grasses that grow during the warmer seasons each year. Crabgrass is especially prevalent in yards that are mowed too short, providing an opportunity for the invasive grasses to grow. There are two types of crabgrasses found in lawns. They are similar in how they grow and mature as well as in the impact on yard appearance. Both crabgrasses are also similar in how they can be controlled.

Types

There are two types of crabgrasses: smooth crabgrass and large crabgrass.

Features

Smooth and large crabgrasses are annuals that are most prevalent from mid-spring until the end of summer. Both types mat together as they grow and could be described as clumping growths of grass.

Reproduction

Crabgrass can reproduce via seeds or long-rooting tillers.

Favorable Conditions

Sunlight and warm soil is all that's necessary to promote crabgrass growth. The favorable soil temperature range is 55 degrees F to 90 degrees F.

Controlling Crabgrass

Herbicides can be applied to lawns as a preventative measure or when crabgrass growth is still small.