Bermuda grass is a warm-season species renowned for its aggressive capacity to fill in open areas and recover from damage. A common question among homeowners and groundskeepers is whether Bermuda grass has runners, and understanding the role of these structures is essential for effective lawn management.
Stolons and Rhizomes: The Two Types of Runners
When discussing whether Bermuda grass has runners, it is important to distinguish between the two specific types of above-ground and below-ground stems. The plant produces both stolons and rhizomes, which function as specialized runners that allow it to spread horizontally rather than relying solely on vertical growth. These structures are the primary method by which Bermuda grass forms dense mats and recovers from disturbances.
Stolons: The Above-Ground Runners
Stolons, often referred to as above-ground runners, grow horizontally along the soil surface. They are responsible for the visible expansion of the lawn, creating new shoots at the nodes where the stems touch the ground. This mechanism allows Bermuda grass to quickly cover bare patches and establish a uniform turf without the need for reseeding.
Rhizomes: The Subterranean Runners
Rhizomes are the underground runners that operate beneath the soil surface. While less visible, they are equally important for the plant’s persistence. These stems store nutrients and enable the grass to survive harsh conditions, such as drought or cold, by regenerating new shoots when conditions improve. The combination of stolons and rhizomes makes Bermuda grass exceptionally resilient and difficult to eradicate unintentionally.
How Runners Impact Lawn Health
The presence of runners contributes significantly to the vigor of Bermuda grass. Because these stems generate roots at the nodes, the lawn becomes interconnected, forming a robust root system that prevents soil erosion and competes effectively with weeds. This dense network is what gives Bermuda grass its reputation for durability in high-traffic areas like sports fields and golf courses.
Challenges of Runners in Maintenance
While the spreading nature is beneficial for establishing a lawn, it can pose challenges for maintenance. The runners can invade flower beds, sidewalks, and the roots of nearby trees, requiring physical barriers or edging to contain the growth. Additionally, because the plant spreads so efficiently, it can become invasive if not managed properly through mowing and aeration practices.
Control and Management Strategies
Managing Bermuda grass runners involves a balance between encouraging growth where desired and preventing unwanted spread. Regular mowing helps keep the stolons under control, while deep watering encourages the development of a strong rhizome system. For those looking to remove the grass, simply cutting the surface growth is insufficient; the rhizomes must be destroyed or solarized to prevent regrowth.
