Timmia megapolitana can also be found at upper elevations in mixed conifer forests. It was found in the northern part of Estonia within moist and shady forest near coastal calcareous cliffs and found in Pine forests that have been exposed to calcareous dust from nearby quarries on the decaying tree stumps of Salix caprea. In Germany and Poland the species was found to be in calcareous marshy meadows, hayfield, and on slopes of marl.
