Question: is phlox the same as thrift?
Answer: Phlox subulata, known as creeping phlox or moss phlox, is also frequently called “thrift.” This plant is a true member of the phlox family. Especially popular in the southeastern U.S., it is actually hardy in USDA zones 2 through 9. It is a low growing, creeping perennial that is frequently used for groundcover.