Couch Grass Lawn Care Guide

Written by Ian Thompson

Ian holds a Masters in Turf Management from Sydney University, has over 20 years experience working as a golf course Superintendent, turf manager, product formulation and development. We call him our resident Lawn genius.

Couch grass is a timeless favourite particularl for those in the northern parts of Australia, it’s celebrated for its fine texture and adaptability to diverse climates both hot and cold. Its fine blades create a soft and inviting carpet, while its ability to withstand various weather conditions makes it a reliable choice for lawns that require both aesthetic appeal and practicality.

Mowing Couch Grass:

Establish a regular mowing routine for your Couch grass lawn. Aim for an optimal height between 5mm and 20mm as couch grass tends to shade the bottom part of its own leaf if it grows to long. Regular mowing not only promotes a healthy and vibrant turf but also manages the fine blades characteristic of Couch. Use a sharp mower blade, preferably a cylinder mower, to ensure minimal stress on the grass, adjusting the mowing frequency based on the season. Consider scaling back mowing during cooler periods when Couch may require less attention as it goes into dormancy in cooler areas.

Watering Couch Grass:

Couch grass can develop very long roots if it receives deep, infrequent watering. Couch grass has a very hardy nature and has a lower water requirement compared to other grass types. Provide your lawn with sufficient water to prevent the formation of dry patches, adjusting based on weather conditions. For consistent moisture distribution, especially during hot and dry periods, consider utilizing a sprinkler or irrigation system.

Weeding Couch Grass:

Couch grass lawn is generally weed free due to the compact and dense nature of the lawn. It can however develop weeds in areas where the lawn has started to thin out along fence lines and other part shaded areas. Regularly inspect the lawn, manually removing any emerging small weeds. For larger weed challenges, consider applying a targeted herbicide. Additionally, incorporate pre-emergent herbicides strategically at the start and end of the growing season to prevent grass weed establishment.

Fertilising Couch Grass:

Couch grass requires a balanced fertiliser, with nutrition applied throughout the growing season. Additionally adding a greening liquid fertiliser and pigments can help maintain colour as the couch grass moves into the dormancy period. `Adhering to recommended application rates is essential for optimal results.

Renovate Couch Grass:

Couch grass has a tendency to develop thatch and periodic renovation is highly recommended. Scalping, scarifying and aeration are all particularly beneficial, contributing to enhanced soil health and improved water and nutrient absorption. Regularly assess your lawn’s condition, identifying and addressing any issues to maintain a resilient and visually appealing Couch grass lawn.

You may also like…