Yes, Christmas Cactus is an acid-loving plant. Christmas cactus, scientifically known as Schlumbergera x buckleyi, thrives in acidic soil conditions. It prefers a pH level ranging from 5.0 to 6.0, which is slightly acidic. Acidic soil provides optimal nutrient absorption and supports its overall health and growth. When grown in alkaline or neutral soils, Christmas cactus may exhibit nutrient deficiencies and stunted growth. To maintain ideal acidity levels, it is recommended to use a well-draining soil mix specifically formulated for acid-loving plants or add acidic amendments such as peat moss or pine bark to regular potting soil.