Classy Groundcovers - Nepeta x faasenii 'Walkers Low' Nepeta racemosa, N. mussinii {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: 3-9 (-40 degrees F) Mature height: 18-26" Spacing: 9-15"