Red barberry is a relatively low-lying and dense shrub that has red edible fruit and green leaves that turn a brilliant crimson in autumn. I have often admired these bushes …

… until I did a little research and learned that they are an invasive species that has caused some rather serious issues.

Because they have a thick, dense thatch, they attract ticks; research indicates that this plant, more than any other, has caused the spread of Lyme disease. These bushes are also responsible for changes in soil nitrogen which in turn leads to a decline in native species.

Although they look beautiful and I love their autumn dress, they are banned in many areas – particularly because of tick infestations – and unfortunately should probably be eliminated wherever they are found.