Question: are phlox acid loving plants?
Answer: According to the USDA PLANTS profile, creeping phlox (Phlox subulata) can tolerate soil pH levels of between 5.7 and 7.5 in the wild. Nursery and other growing authorities suggest ranges of 6.8 to 7.7, suggesting tolerances for both mildly acid and mildly alkaline soils.