Q: What makes a plant invasive, and why are they considered harmful? A: Whenever we hear about invasive species, we usually think about pest insects or arthropods such as Argentine ants or fruit flies ...

Different gardeners have different ideas about what plants are weeds in their gardens. I define a weed as a plant that is growing where it is not wanted in the garden, so I have lots of latitude for ...

During the 2025 survey, volunteers visited 86 retail garden centers in 56 cities and found 49 invasive plant species ...