Classy Groundcovers - Astilbe x arendsii 'Fanal' {10 Bare Root plants} 10 bare roots (plants shipped without soil or pots) 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: 18-24" Spacing: 12-18"