Science and conservation
Tackling invasive species
Our efforts to raise awareness of problematic introduced species and remove them from our own gardens
Picea sitchensis (the Sitka spruce)
Dense plantations and uncontrolled spread of the Sitka spruce have impacted on the open coastal landscape of western Norway
Western hemlock (Tsuga heterophylla)
Western hemlock is categorised as 'very high risk' on Norway's list of introduced, invasive species.