Classy Groundcovers - Phlox subulata 'Red Wings' {24 Pots - 3 1/2 in.} 24 pots, each square pot is 3 1/2 inches on a side Note: we cannot ship to AK, AZ, CA, HI, NV, OR, WA or outside the US. FREE EXPEDITED SHIPPING (1-3 DAYS) to all other states. Cold hardiness zone: 2-9 (-50 degrees F) Mature height: 4-6" Spacing: 8-12"