From tall, fluffy pampas to low-growing invaders like spartina, pest grasses come in all shapes and sizes. But they all share a common threat: they smother native plants, disrupt ecosystems, and spread quickly if left alone.
Spray
Spraying is the best option for controlling grasses. Herbicides are available that target only grasses without harming your other plants.
Always follow label instructions and avoid spraying near waterways.
Hand pulling or grubbing
Using a specific tool called a grubber can help remove the roots especially for tussock-like species
- Always have a plan to replant – never leave bare soil! Removing a grass weed? Replace it with native ground cover species to fill the gap and stop new weeds from moving in.
- Dig deep – use a spade or grubber to remove the full root system. Shake off the soil and leave the roots exposed to dry out—this stops them from re-rooting and growing back.
- Keep checking – inspect the area regularly for regrowth or seedlings and remove them before they spread – small shoots are much easier to deal with.
Cutting or mowing alone won’t work
Pest grasses grow from low down near the base, so mowing won’t kill them. Cutting can easily spread seed far and wide, especially if machinery is used in multiple places.
You muse target and remove the roots for lasting control.