Ever since humans invented agriculture and started moving from continent to continent, they have taken plants with them. In most cases imported, non-native plants do not spread much beyond the bounds of horticulture. But the exceptions are increasingly worrisome to biologists. Removed from the pests and diseases that kept them in check in their natural habitats, some plants multiply explosively. They can smother native ecosystems in a matter of a few years.
Some of these invasive plants, such as bush honeysuckle, Japanese knotweed, phragmites reed, and purple loosestrife, are all too familiar in our region. As if that’s not enough, we must now add a new menace to the list. The latest member of this rogues’ gallery is garlic mustard, a pungent herb in the cabbage family. » Continue Reading.