When To Prune Monkey Grass

The best time to prune monkey grass is in late winter or early spring, just before new growth begins.
 
This is the ideal window because the plant is dormant, and cutting it back now sets the stage for a fresh, healthy flush of foliage.
 
If you’re wondering when to prune monkey grass, the short answer is that this late-winter timing works best for most varieties.
 
Pruning monkey grass at this time removes the tired, tattered blades from the previous year and encourages vigorous new shoots.
 
In this post, we’ll walk through why this timing is so important, how to prune monkey grass correctly, and what mistakes to avoid so your landscape looks its best.
 
Let’s dig in.
 

Why Late Winter Is the Best Time to Prune Monkey Grass

Pruning monkey grass in late winter aligns perfectly with the plant’s natural growth cycle.
 
Monkey grass, also known as liriope, is a tough, evergreen perennial that can look ragged after a long season of heat, cold, and foot traffic.
 
When you prune monkey grass in late winter, you’re removing old growth just before the plant invests energy into new blades.
 
This gives the plant a clean slate and allows sunlight and air to reach the crown, which reduces the risk of disease.
 
Here’s a closer look at why this timing works so well for pruning monkey grass.
 

1. The Plant Is Dormant and Stress-Free

Monkey grass goes semi-dormant in the coldest months, meaning it’s not actively growing.
 
When you prune monkey grass during this rest period, you avoid interrupting active growth.
 
Cutting it back now doesn’t shock the plant because it’s already in a low-energy state.
 
By the time warmer temperatures arrive, the plant is ready to push out new blades with all its stored energy.
 
This is why late winter is the safest time to prune monkey grass without causing long-term damage.
 

2. You Remove Winter Burn and Tattered Foliage

After months of frost, wind, and dry air, monkey grass blades often look brown, frayed, or yellowed at the tips.
 
Pruning monkey grass in late winter clears away all that unsightly damage.
 
This immediately improves the appearance of your beds and borders.
 
Plus, removing the old blades prevents fungal spores from lingering on dead tissue.
 
So you’re not just tidying up—you’re also protecting the plant from potential infections.
 

3. It Encourages Uniform, Healthy Regrowth

When you prune monkey grass down to a few inches, the plant responds by sending up fresh, uniform shoots.
 
This creates a neat, manicured look that’s hard to achieve if you only trim the tips.
 
Pruning monkey grass all the way down also ensures that new growth comes from the crown, not from long, leggy stems.
 
The result is a denser, more attractive clump that fills in nicely by early summer.
 

4. You Can Divide and Transplant at the Same Time

Late winter is also the perfect moment to divide monkey grass if your clumps are getting too large.
 
Since you’re already pruning monkey grass down to the base, it’s easy to dig up the clumps and split them.
 
This way, you can refresh old plantings and spread monkey grass to new areas in one go.
 
The plant recovers quickly because it’s not trying to support a lot of top growth.
 

How to Prune Monkey Grass the Right Way

Knowing when to prune monkey grass is only half the battle—you also need a proper technique.
 
Here’s exactly how to get the job done without harming the plant.
 

1. Gather the Right Tools

You don’t need anything fancy to prune monkey grass.
 
A sharp pair of hedge shears or even a string trimmer works great.
 
If you’re pruning monkey grass along a long border, hedge shears give you more control.
 
For smaller clumps, a pair of hand pruners or scissors will do the trick.
 
Just make sure your blades are clean and sharp to avoid crushing the foliage.
 

2. Cut It Down to About 2–3 Inches

When you prune monkey grass, aim to leave a short stubble of about 2 to 3 inches above the ground.
 
This is low enough to remove all the old, tattered growth.
 
But it’s high enough to protect the crown from harsh freezes that can still occur in early spring.
 
Don’t cut it down to the dirt because that can expose the roots and make the plant more vulnerable.
 

3. Gather and Remove the Clippings

After pruning monkey grass, you’ll be left with piles of cut blades.
 
Rake them up and toss them in your compost bin or yard waste bag.
 
Leaving the clippings in place can smother new growth and create a messy look.
 
Plus, removing the debris helps prevent pests and diseases from overwintering in the mulch.
 

4. Clean Up the Edges

Once you’ve pruned the monkey grass, take a moment to define the edges of your beds.
 
Use a spade or edger to create a crisp line between the monkey grass and your lawn or walkway.
 
This gives your landscape a polished, professional appearance.
 

When NOT to Prune Monkey Grass

While late winter is the sweet spot, there are times when you should avoid pruning monkey grass altogether.
 
Understanding these exceptions will save you from making costly mistakes.
 

1. Don’t Prune in Late Fall

Pruning monkey grass in late fall removes the foliage that helps insulate the crown during winter.
 
That old growth acts like a protective blanket against freezing temperatures.
 
If you cut it too early, you risk damaging the roots and crown.
 
So avoidpruning monkey grass until late winter, even if it looks a bit messy in November.
 

2. Don’t Prune During Summer Heat

Pruning monkey grass in the middle of summer stresses the plant.
 
The sun can scorch the exposed crown, and the plant will struggle to push out new growth in the heat.
 
If you see dead blades in summer, just pull them out by hand instead of doing a full pruning.
 

3. Don’t Prune Right Before a Hard Freeze

Even in late winter, check the forecast before you prune monkey grass.
 
If a hard freeze is expected within a week, wait until it passes.
 
Freshly cut crowns are more sensitive to extreme cold.
 
A little patience ensures those tender new shoots won’t be damaged.
 

So, When Should You Prune Monkey Grass?

The best time to prune monkey grass is unquestionably late winter to early spring.
 
Prune monkey grass right before new growth begins, and you’ll enjoy a lush, vibrant display all season long.
 
This timing reduces stress, removes winter damage, and encourages healthy regrowth.
 
Just remember to avoid pruning monkey grass in fall, summer, or right before a freeze.
 
Stick to this simple schedule, and your monkey grass will thank you with dense, beautiful foliage.
 
So grab your shears on a mild late-winter day and give your monkey grass the fresh start it deserves.