How to Kill Winter Grass on Your Lawn: A Simple Guide

Winter grass, or otherwise known as Poa annua, is an invasive species of weed that grows during winter. 

The good news is that you can learn how to kill winter grass and keep your lawn looking great all year long.

It is crucial to learn which ingredients in the herbicides could be fatal to the grass you actually want growing in your lawn. To learn more about those, as well as a few other safe winter grass elimination methods, read on.  

How to Get Rid of Winter Grass

First of all, the reason it’s called winter grass is because the seeds germinate in the winter.  I have a handy video that will help you to determine whether or not it’s winter grass.  

Pre-Emergent Herbicides 

Pre-emergent herbicides work by killing the seeds before they germinate.  Pre-emergent herbicides are designed to stop seeds from germinating.   

Post-Emergent Herbicides 

Post-emergent herbicides work by targeting a fully-grown plant by killing it from top to bottom.  Spot spraying is the best option for using post-emergent herbicides to minimize potential damage to your lawn grass.  

Try Hand-Weeding your Lawn

Hand-weeding may sound exhausting, but you shouldn’t underestimate its effectiveness. This weed control method is best used when you’re concerned that using herbicides will kill or damage other plants on your lawn.

Spray Vinegar Solution on the Winter Grass

Vinegar is a natural weed killer. However, you can’t just use the stuff in your kitchen pantry. It should be at least 20% acidic


As an invasive grass, winter grass can survive and thrive under cold temperatures. If left unchecked, this winter weed can get out of control.

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