Fagus sylvatica purpurea (copper beech)

Fagus sylvatica, the European beech or common beech, is a deciduous tree belonging to the beech family Fagaceae.

Though not demanding of its soil type, the European beech has several significant requirements: a humid atmosphere (precipitation well distributed throughout the year and frequent fogs) and well-drained soil (it cannot handle excessive stagnant water). It prefers moderately fertile ground, calcified or lightly acidic, therefore it is found more often on the side of a hill than at the bottom of a clayey basin. It tolerates rigorous winter cold, but is sensitive to spring frost.

Source: Wikipedia