Didymodon moss is a genus of moss requiring moderate to high humidity and bright indirect light to mimic its native shady, moist habitats. In terms of basic care needs, didymodon moss thrives in well-draining, slightly acidic soil with consistent moisture but without waterlogging. Common challenges include avoiding dry air, which can cause desiccation, and managing water quality to prevent mineral build-up. Seasonally, didymodon moss may need protection from intense sun and dry conditions in summer, and from freezing temperatures in winter, necessitating adjustments in watering frequency and protection from the elements.