Pines are versatile evergreens more tolerant of harsh sites than spruces or firs. They have few serious pest problems and can handle a wide range of soil and temperature conditions. Swiss Stone pines form columnar pyramids in youth, becoming more flat-topped as they mature. Site in open areas where air can move freely around the trees. Algonquin Pillar is a narrow, upright selection with soft, twisting, two-toned needles. It’s a good alternative to Vanderwolf’s Pyramid. Slow growing.