Couch grass, also known as Bermuda grass, is one of the most popular lawn choices in Australia. It’s fast-growing, durable, and thrives in full sun, making it a top pick for home lawns, parks, and sports fields. But when it comes to trimming, couch grass needs the right approach. Its fine texture and dense growth mean you need a trimmer line that cuts cleanly without damaging the grass.
🔍 Understanding Couch Grass (Bermuda)
Couch grass is known for:
✅ Fine, wiry blades that grow densely
✅ A fast-spreading growth habit that can quickly take over garden beds
✅ High durability, thriving in hot, sunny conditions
✅ A tendency to develop thick runners (stolons), which can be tricky to trim
Popular varieties include:
🌱 Wintergreen Couch – Soft underfoot, great for backyards
🌱 Nullarbor Couch – Premium, fine-leaf variety for sports fields
🌱 Greenlees Park Couch – Hard-wearing and dense
🌱 Santa Ana Couch – A darker green variety, popular for high-traffic areas
Because of its fine blades and creeping growth, couch grass needs a gentle yet precise cut to maintain a neat look without damaging the lawn.
🏆 The Best Trimmer Line for Couch Grass
Couch grass is softer than other lawn types, so using an aggressive line like square or serrated trimmer line can damage the blades, leaving them frayed and brown. Instead, you want a smooth-cutting line that trims efficiently without tearing the grass.
1. Round Trimmer Line – The Best Choice
👉 Smooth edges prevent fraying: Unlike square or serrated lines, round trimmer line won’t damage delicate couch grass
👉 Less aggressive cutting action: Provides a clean trim without scalping the lawn
👉 Durable and long-lasting: Less prone to breaking on fences or hard surfaces
2. Twist Trimmer Line – Best of Both Worlds
👉 Cleaner cut with less resistance: Reduces strain on your trimmer while slicing through fine couch grass
👉 Lower noise and vibration: A smoother trimming experience
👉 Better airflow: Helps with efficiency and fuel economy for petrol trimmers
What Size Trimmer Line Should I Get?
This depends on your trimmer. Please consult your trimmer's manual to determine what line diameter it accepts.
Final Thoughts – Get the Right Gear for the Job
With the right trimmer line, you’ll get a cleaner cut, faster trimming, and a healthier-looking lawn all while saving time and effort.
Happy trimming! ✂🌱
