Rhododendron

Invasive

Yet another stunningly beautiful scene while out hill walking. This time it was rhododendron, masses of brightly flowered rhododendron (see photo). Turns out that they are an unwelcome non-native invasive species.

They form dense thickets, shading out native plants and preventing them from accessing sunlight, water, and nutrients. Its extensive root system and leaf litter is toxic to many other plants. Worse still, it harbors Phytophthora, a fungus-like pathogen that affects many other trees and plants. Organizations like the National Trust for Scotland are actively involved in control efforts, including removing invasive plants and restoring habitats. Now you know.