Tree Abies concolor 'Conica' [Conica White Fir] 'Conica' is a narrow habit white fir, with a spread reaching 10-15' wide. Similar to Picea pungens f. glauca in color and general form, but less positive, and easier to use in a variety of situations. Better adapted to hot, dry summers than most other firs, but prefers cooler cilmates.
Tree Acer × freemanii 'Armstrong' [Armstrong Red Maple] The Armstrong Red Maple is a cross between Acer rubrum and Acer saccharinum and is known for its columnar habit and brilliant red to red-orange fall coloration. This species has the durability of the Silver Maple and can tolerate urban conditions. The root system is less aggressive, though, so it can be planted as a street tree.
Tree Acer × freemanii 'Scarsen' [sold as Scarlet Sentinel®] [Scarlet Sentinel Freeman Maple] This cultivar is a cross between the Red Maple and the Silver Maple, though it's leaves and bark more closely resemble the Silver Maple. It is one of the most adapted maples for southern regions of the country. 'Scarsen' is known for its colorful yellow-orange to orange-red fall foliage and columnar growth form.
Tree InvasiveThis plant is considered invasive Acer platanoides 'Columnare' [Columnar Norway Maple] This cultivar is easy to transplant and is tolerant of different soils. The Columnar Norway Maple is more adaptable to drought than other Maples. Pollution tolerant. When Norway maple escapes cultivation and invades natural areas it reduces species richness and native tree regeneration by out-competing other trees and understory species for resources, creating dense shade canopies, and spreading rapidly through high seed production. It also releases toxins that reduce the growth and reproduction of native…
Tree Acer rubrum 'JFS-KW78' [sold as Armstrong Gold®] [Armstrong Gold Maple] Low maintenance maple that needs full sun to part shade. Best grown in moist, well drained, acidic soil with branches that are angled upwards.
Tree Acer saccharum 'Barrett Cole' [sold as Apollo®] [Apollo Sugar Maple] This cultivar has a unique narrow to columnar shape with dense branching and a generally small size. Has been noted for its resistance to the Japanese beetle. Tolerant of soils although does best in deeper soils. Great coloration during fall months, full sun encourages a deep red fall color.
Tree Acer saccharum 'Endowment' [Endowment Sugar Maple] The Endowment Sugar Maple is known for its tight columnar shape. It is best to place this tree where its roots are not restricted. More drought tolerant than other Sugar Maples. Used for as a screen and street tree.
Tree Acer saccharum 'Goldspire' [Goldspire Sugar Maple] The Goldspire Sugar Maple has a densely columnar shape and brilliant yellow to yellow-orange fall foliage. This cultivar is shade tolerant and resistant to leaf scorch. As with most Sugar Maples, the Goldspire Sugar Maple does not tolerate compacted soils.
Tree Calocedrus decurrens [California Incensecedar] The California Incensecedar is a large, handsome plant, excellent for formal plantings. In youth it is distinctly columnar and may develop a more conical habit at maturity. This plant is quite adaptable to different types of soils and is drought and heat tolerant once established. The California Incensecedar is known to be quite long-lived and large in the wild, even over 1000 years old and reaching more than 150' in height.
Tree Calocedrus decurrens 'Columnaris' [Columnar California Incensecedar] The Columnar California Incensecedar is a large, handsome plant, excellent for formal plantings. This cultivar is very narrow-columnar in habit, retaining this form well into maturity. Quite adaptable to different types of soils, this plant is also drought and heat tolerant once established.
