Exposed

Exposed, Japanese knotweed

First Japanese knotweed shoots of the year spotted in Plymouth

The first Japanese knotweed shoots to emerge in 2021 have been spotted on the banks of the River Plym in Plymouth, Devon, confirming that the UK’s most invasive plant has begun its spring growth season.

Japanese knotweed hibernates during the winter months before emerging when the ground temperature reaches around 4°c, usually in March or April. Red or purple asparagus-like shoots...