11 Invasive Plants You Should Never Buy At The Garden Center

What’s more, invasive plant removal can be almost impossible – meaning constant work to chop down foliage, remove dead flowers, and pull up roots. Invasive plants are a significant threat to native flora and fauna, and their removal can be a daunting task. The focus keyword “invasive plants” is crucial in understanding the risks associated with these species. When visiting a garden center, it’s essential to be aware of the potential risks posed by some of the most commonly bought invasive plants. These plants may look harmless and even possess appealing qualities, but they can quickly get out of control, smothering other plants and threatening wildlife habitats.
Invasive Plants to Avoid
The chameleon plant (Houttuynia cordata) is a fast-growing perennial ground cover that can be grown in USDA planting zones 5-11. This plant features attractive, colorful foliage in shades of pink, green, and yellow, and is often planted in areas of difficult soil that might otherwise remain bare. However, killing chameleon plants is almost impossible, as its roots spread vigorously through underground rhizomes that are fragile and break easily. Even when you think you have pulled it all up, it will resprout from the root system. To add to its faults, the plant emits a smell similar to diesel fuel, so should never be planted near patios and seating areas. While you could consider confining the chameleon plant to a container, there are some lovely non-invasive alternatives to choose from. Look to plants from the coral bells or foamflower families, which are available in many colors and form small clumps of foliage that stay compact to provide color and interest to the front of a border.
Some key facts about the chameleon plant include:
* It can be grown in USDA planting zones 5-11
* It features attractive, colorful foliage in shades of pink, green, and yellow
* Its roots spread vigorously through underground rhizomes that are fragile and break easily
* It emits a smell similar to diesel fuel
* It can be confined to a container to prevent spreading
In contrast, some pros of the chameleon plant include:
* Attractive, colorful foliage
* Helps to attract beneficial pollinators to gardens
However, the cons of the chameleon plant far outweigh its benefits, including:
* Invasive nature
* Highly poisonous
* Offensive smell
What’s New in Invasive Plants: Shifts, Myths, and Better Approaches

Lily of the Valley (Convallaria majalis) may look innocent but it can spread aggressively through rhizomes and self-seeding, negatively affecting local plant populations. This woodland native is commonly available in garden centers in some states, while others list it as an invasive plant because of its tendency to quickly form large colonies. It thrives in partial shade and moist soil in USDA zones 2-9. Though its sweet fragrance makes it an alluring choice, all parts of the plant are highly poisonous. The toxicity of lily of the valley makes it unsuitable for properties with children and pets. If your eyes are drawn to the attractive white blooms, good alternatives would be snowdrops, white bellflower, or white balloon flower. All are low-growing and can provide spring or summer blooms.
Some key facts about lily of the valley include:
* It can spread aggressively through rhizomes and self-seeding
* It thrives in partial shade and moist soil in USDA zones 2-9
* All parts of the plant are highly poisonous
* It can form large colonies quickly
* It is unsuitable for properties with children and pets
Native Flora and Fauna: The Impact of Invasive Plants
Butterfly Bush (Buddleia) is a popular perennial shrub that helps to attract butterflies and other beneficial pollinators to gardens in USDA zones 5-10. Its attractive blooms are available in various colors to complement any landscape. However, left unchecked, the wild species, Buddleia davidii, can self-seed and invade open spaces, crowding out native plants. This is problematic even in riverbanks and other areas where it can outcompete native vegetation. But if you are a fan of buddleia, do not despair. New, sterile, compact butterfly bush varieties are being developed to replace invasive ones. These new varieties are bred to be non-invasive and provide the same benefits as the original plant.
| Plant | Invasive | Native Range | USDA Zones |
|---|---|---|---|
| Chameleon Plant | Yes | Asia | 5-11 |
| Lily of the Valley | Yes | Europe | 2-9 |
| Butterfly Bush | Yes | China | 5-10 |
Some key facts about butterfly bush include:
* It can self-seed and invade open spaces
* It can crowd out native plants
* It is available in various colors to complement any landscape
* New, sterile, compact varieties are being developed to replace invasive ones
What can you do to prevent the spread of invasive plants in your garden, and how can you make more sustainable choices for your landscape?
Practical Tips for Avoiding Invasive Plants
Callery Pear (Pyrus calleryana) has an invasive nature, bitter fruit, and an offensive smell. It is a popular ornamental tree, but its invasive tendencies make it a plant to avoid. Here are some step-by-step tips for avoiding invasive plants:
1. Research the plant before buying it. Check if it is invasive in your area and if it can outcompete native vegetation.
2. Consider the plant’s growth habits and whether it can spread quickly.
3. Look for non-invasive alternatives to the plant you want.
4. Confine invasive plants to containers to prevent them from spreading.
Some key facts about callery pear include:
* It has an invasive nature
* It has bitter fruit
* It has an offensive smell
* It is a popular ornamental tree
* It can outcompete native vegetation
Advanced Strategies for Managing Invasive Plants
Here are some advanced strategies for managing invasive plants:
* Monitor your garden regularly for signs of invasive plants.
* Use physical barriers to prevent invasive plants from spreading.
* Use chemical controls, such as herbicides, to control invasive plants.
* Consider using biological controls, such as introducing natural predators or competitors, to control invasive plants.
Some key facts about managing invasive plants include:
* Monitoring your garden regularly is essential for detecting invasive plants early
* Physical barriers can be effective in preventing invasive plants from spreading
* Chemical controls can be used to control invasive plants, but they must be used carefully
* Biological controls can be a sustainable and effective way to manage invasive plants
How can you balance the need to control invasive plants with the need to protect native flora and fauna?
Common Mistakes to Avoid When Dealing with Invasive Plants
Here are some common mistakes to avoid when dealing with invasive plants:
* Not researching the plant before buying it.
* Not considering the plant’s growth habits and potential to spread.
* Not looking for non-invasive alternatives to the plant.
* Not confining invasive plants to containers.
* Not monitoring your garden regularly for signs of invasive plants.
Some key facts about common mistakes include:
* Researching the plant before buying it is essential
* Considering the plant’s growth habits and potential to spread is crucial
* Looking for non-invasive alternatives is a sustainable choice
* Confining invasive plants to containers can prevent them from spreading
* Monitoring your garden regularly is essential for detecting invasive plants early
Key Takeaways
- Invasive plants can be a significant threat to native flora and fauna.
- Researching the plant before buying it is essential.
- Considering the plant’s growth habits and potential to spread is crucial.
- Looking for non-invasive alternatives is a sustainable choice.
- Confining invasive plants to containers can prevent them from spreading.
- Monitoring your garden regularly is essential for detecting invasive plants early.
Frequently Asked Questions
Q: What are some common invasive plants to avoid?
A: Some common invasive plants to avoid include chameleon plant, lily of the valley, and butterfly bush. These plants can outcompete native vegetation and cause significant harm to the environment.
Q: How can I prevent the spread of invasive plants in my garden?
A: You can prevent the spread of invasive plants in your garden by researching the plant before buying it, considering its growth habits and potential to spread, looking for non-invasive alternatives, confining invasive plants to containers, and monitoring your garden regularly.
Q: What are some non-invasive alternatives to invasive plants?
A: Some non-invasive alternatives to invasive plants include coral bells, foamflower, snowdrops, white bellflower, and white balloon flower. These plants are available in many colors and can provide the same benefits as invasive plants without the risks.
Q: How can I manage invasive plants in my garden?
A: You can manage invasive plants in your garden by monitoring your garden regularly, using physical barriers to prevent them from spreading, using chemical controls, and considering biological controls.
Q: What are some common mistakes to avoid when dealing with invasive plants?
A: Some common mistakes to avoid when dealing with invasive plants include not researching the plant before buying it, not considering its growth habits and potential to spread, not looking for non-invasive alternatives, not confining invasive plants to containers, and not monitoring your garden regularly.
The Verdict: What You Should Do Next
In conclusion, invasive plants can be a significant threat to native flora and fauna, and it’s essential to be aware of the risks associated with these species. By researching the plant before buying it, considering its growth habits and potential to spread, looking for non-invasive alternatives, confining invasive plants to containers, and monitoring your garden regularly, you can prevent the spread of invasive plants and make sustainable choices for your landscape. Here are three concrete next steps you can take today:
1. Research the plants in your garden and identify any invasive species.
2. Consider replacing invasive plants with non-invasive alternatives.
3. Monitor your garden regularly and take action to prevent the spread of invasive plants.
As you move forward, remember that every small action counts, and by making sustainable choices, you can help protect native flora and fauna for future generations.




