Holm oak is listed as an invasive species in the United Kingdom. Normally the tree is unable to withstand severe frost, which would prevent it from spreading north, but with climate change, it has successfully penetrated and established itself in areas north of its native range. The largest population of Holm oak in Northern Europe is present on and around St. Boniface Down on the Isle of Wight and into the neighbouring town of Ventnor, a town known for its naturally warmer microclimate, and has shown to tolerate the high winds on the downs. It is thought that this population's propagation (which was established in the late 1800s after having been planted by Victorian residents) has been bolstered by native Eurasian jays ("Garrulus glandarius"), which harvest acorns from oak trees and store them by burying them in the ground where they may then germinate. Feral goats were brought to Ventnor to control the spread of the Holm Oak.