Columnar White Pine Pinus strobus ‘Fastigiata’ Description Long blue-green needles. Growth Habit: Narrow, pyramidal and columnar Mature Height: 40’ to 50’ (12m to 15m)Mature Spread: 8’ (2.5m)Growth Rate: Fast More Details Sun Exposure: Full SunCold Hardiness Zone: 3Pruning Tip: Pinching candles mid-Spring will help to maintain compact formLandscape Use: Privacy screening