How To Get Rid Of Lily Of The Valley Plants

Lily of the valley plants can be very persistent and tough to get rid of once they’ve taken root in your garden or yard.
 
If you’re wondering how to get rid of lily of the valley plants effectively, the good news is it is possible with the right methods.
 
In this post, we’ll explore why lily of the valley plants can be so tricky to remove, the best ways to get rid of lily of the valley plants completely, and helpful tips to prevent them from returning.
 
Let’s dive into how to get rid of lily of the valley plants so you can reclaim your garden space.
 

Why You Should Get Rid of Lily of the Valley Plants

Lily of the valley plants are charming with their delicate white bell-shaped flowers, but there are several reasons why you might want to get rid of lily of the valley plants from your garden.
 

1. Lily of the Valley Plants Spread Aggressively

These plants spread via underground rhizomes, which allow lily of the valley plants to take over areas quickly.
 
Once lily of the valley plants start spreading, they can crowd out other plants you want to grow, making them difficult to control.
 

2. They Are Toxic to Humans and Pets

All parts of lily of the valley plants are toxic if ingested, especially the berries and leaves.
 
If you have children or pets, it’s important to get rid of lily of the valley plants to avoid accidental poisoning.
 

3. They Can Be Hard to Remove Naturally

Because lily of the valley plants have extensive underground roots, simply cutting the foliage won’t stop them from growing back.
 
This makes it important to approach how to get rid of lily of the valley plants with a plan that targets the root system.
 

How to Get Rid of Lily of the Valley Plants Effectively

Getting rid of lily of the valley plants requires patience and persistence, but with the right techniques, you can control and eliminate them.
 

1. Manual Removal with Root Excavation

The most straightforward way to get rid of lily of the valley plants is by physically digging up the roots.
 
Use a garden spade or fork to carefully dig around the plants and extract the entire root system, including all rhizomes.
 
Since lily of the valley plants spread underground, leaving any root fragments can result in regrowth.
 
Make sure to remove all parts of the root to prevent the plants from coming back.
 
After digging, dispose of the roots safely away from your garden—don’t compost them because they could re-root.
 

2. Repeated Cutting and Mowing

If the lily of the valley plants cover a large area, initial manual removal can be impractical.
 
In that case, repeated cutting or mowing can weaken the plants over time.
 
Constantly cutting the leaves prevents the plant from photosynthesizing, slowly starving the rhizomes underground.
 
With regular mowing or cutting every 1-2 weeks during the growing season, the plant’s energy reserves dwindle.
 
Eventually, this leads to death of the lily of the valley plants after several months to a few growing seasons.
 

3. Use of Herbicides

Herbicides can be effective for how to get rid of lily of the valley plants, especially when dealing with severe infestations.
 
For best results, use a systemic herbicide containing glyphosate or triclopyr.
 
These products are absorbed by the leaves and transported to the root system to kill the entire plant, including the rhizomes.
 
Apply herbicide when the lily of the valley plants are actively growing and before they flower for maximum uptake.
 
Follow all label directions carefully and avoid spraying on nearby plants you want to keep.
 

4. Smothering and Solarization

Another natural way to get rid of lily of the valley plants involves smothering with heavy mulch or landscape fabric to block sunlight.
 
Cover the affected area with layers of cardboard, newspaper, or black plastic, then place mulch on top.
 
Trapping heat with solarization during sunny months can also weaken the plants underground.
 
This method takes time, but smothering lily of the valley plants starves them of light needed for growth.
 
Eventually, the plants will die off after several months of being covered.
 

Preventing Lily of the Valley Plants from Returning

Once you get rid of lily of the valley plants, you’ll want to keep them from coming back and spreading again.
 
Here are some tips to prevent lily of the valley plants from returning:
 

1. Monitor and Remove New Shoots Early

Keep an eye on areas where lily of the valley plants were removed and pull out any new shoots immediately.
 
Pulling seedlings before roots develop will stop the plants from re-establishing.
 

2. Use Barriers to Block Rhizome Spread

Installation of root barriers underground is helpful for stopping the invasive spread of lily of the valley plants.
 
These barriers can be plastic or metal sheets installed vertically to block the rhizomes from spreading beyond the desired area.
 

3. Choose Competitive Ground Covers

Planting ground covers that spread quickly and compete well for nutrients and space can outcompete lily of the valley plants.
 
Plants like vinca minor or creeping thyme can help suppress unwanted lily of the valley growth by crowding out seedlings.
 

4. Regular Maintenance and Inspection

Routine garden maintenance like weeding, mulching, and inspecting your garden can prevent lily of the valley plants from gaining a foothold.
 
The sooner you spot any growth, the easier it is to control and stop lily of the valley plants from spreading again.
 

Safe Disposal of Lily of the Valley Plants

Because lily of the valley plants are toxic, it’s important to dispose of them safely after removal.
 
Do not compost the roots or leaves as they can survive and spread through compost piles.
 
Instead, bag the removed plant material securely and dispose of it in municipal green waste or landfill bins.
 
This reduces the risk of accidental ingestion by pets, children, or wildlife.
 

So, How to Get Rid of Lily of the Valley Plants?

Getting rid of lily of the valley plants is definitely achievable with the right approach.
 
Since lily of the valley plants spread aggressively through rhizomes, it’s essential to focus on removing or killing the root system completely.
 
Manual digging of roots, repeated cutting, targeted herbicide use, and smothering techniques are all proven methods for how to get rid of lily of the valley plants effectively.
 
Preventing their return with regular monitoring, root barriers, and competitive planting will help maintain control in the long term.
 
Remember to dispose of all lily of the valley plant material safely to avoid further spread.
 
With patience and persistence, you can enjoy a garden free of invasive lily of the valley plants and keep your outdoor space healthy and safe.
 
That’s the straightforward guide on how to get rid of lily of the valley plants so you can manage these charming yet tenacious plants.