Some other columnar/narrow choices:
- Pink Spires crabapple (not as columnar, but still nice)
- Purple Spire crabapple (very columnar)
- Prairie Sky poplar
- Tower poplar
- Sutherland caragana
- Columnar blue spruce (evergreen)
- Medora juniper (evergreen)
- Wichita juniper (evergreen)
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