Replanting your garden in Palm Beach County? 8 invasive plants to avoid
Updated Feb. 17, 2026, 2:14 p.m. ET
The recent cold weather in Palm Beach County has taken a toll on gardens, with many homeowners eager to replace brown, dead plants with vibrant, colorful blooms. However, it's crucial to be aware of invasive species that can quickly take over your garden and outcompete native flora.
Invasive Plants in Florida Garden Centers
Yes, it's true that some garden plants sold in stores are considered invasive. Experts advise against purchasing these plants, as they can spread rapidly and cause significant ecological damage.
Commonly Found Invasive Plants
The University of Florida has identified the top eight invasive plants commonly found in retail garden centers:
- Asparagus Fern: This Category I invasive spreads quickly through seeds and underground tubers, forming dense mats that outcompete native plants. It's difficult to eradicate once established.
- Lantana: Toxic and highly flammable, lantana leaves and berries are harmful to many animals and can contribute to the spread of wildfires in invaded areas.
- Pothos (Devil's Ivy): Sold as a houseplant, pothos can escape and smother native vegetation with its dense vines, blocking light and causing stress or death to host trees.
- Water Hyacinth: While beautiful, water hyacinth blocks critical sunlight needed by biologically important aquatic grasses.
- Madagascar Periwinkle (Vinca): These colorful plants frequently escape cultivation and can spread in natural areas, roadsides, and urban interfaces, reducing plant diversity and being toxic if ingested.
- Wandering Dude: An easy-to-grow plant that is highly aggressive and toxic to pets if ingested, potentially outcompeting native plants.
- Water Snowflake: This Category I invasive spreads rapidly by floating stems, fragments, and seeds, forming dense surface mats that block sunlight and reduce oxygen levels in water, altering fish and invertebrate habitats.
- Mimosa Tree (Persian Silk Tree): Stunning but deceptive, mimosa trees produce an abundance of seeds that germinate quickly, displacing native trees and shrubs.
Why Avoid These Plants?
Kimberly Moore and Jeannie Schmiddle, experts from the University of Florida, emphasize the importance of avoiding these plants due to their rapid spread, ecological impact, and potential toxicity.
What to Do Instead
If you're unsure about what to buy for your Florida landscape, Moore suggests having a plan before shopping. Visit a botanical garden, make a list of desired plants, and do some research to ensure you're making informed choices.
Florida Native Plants
According to Florida statute 5B-40.00, a Florida native plant is one that was present in the state before European contact. The University of Florida's IFAS Extension provides a list of native plants to help gardeners make sustainable choices.
Remember, being mindful of invasive species is crucial for maintaining the health and biodiversity of your garden and the surrounding ecosystem.
