How to Control Weeds Around Mondo Grass

Mondo grass is a popular landscaping plant used for borders, edging and as a low-growing ground cover. Its dense, grass-like foliage looks great between garden beds, along paths and in shady areas, but unfortunately weeds and unwanted grasses can still find their way through.

We get a lot of enquiries about how to kill weeds growing amongst mondo grass without damaging the mondo itself. The good news is that there are options. The right treatment depends on how well established your mondo grass is.

Treating weeds in established mondo grass

If your mondo grass is well established and healthy, we recommend using LawnPro Prickle and Hydrocotyle.

LawnPro Prickle and Hydrocotyle is a selective herbicide formulated to control broadleaf weeds such as Onehunga prickle weed, hydrocotyle, oxalis and other weeds. It can also help suppress unwanted grasses like kikuyu and twitch without harming established mondo grass.

Apply according to the label directions and only treat mondo grass that is healthy and well established.

 

Treating weeds around young or stressed mondo grass

If your mondo grass is relatively young, newly established or showing signs of stress, we recommend taking a more targeted approach with Weed Weapon Invade Gel.

Weed Weapon Invade Gel is a targeted solution that kills only the plants that it is applied to, and because it’s a painted on gel and not a spray there’s no risk of spray drift. 

Simply paint the gel onto the unwanted weeds or grasses, taking care to avoid the mondo grass (it is a powerful product that will kill plants it is applied to, so careful application is important).

 

Keep your mondo grass looking its best

Weeds growing through mondo grass can be frustrating, especially when grasses such as kikuyu and twitch become tangled through the foliage. Choosing the right treatment for the age and condition of your mondo grass will help you tackle unwanted weeds while protecting the plants you want to keep.