Height: 40 feet Spread: 10 feet
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Hardiness Zone: 3a Other Names: Hybrid Poplar, Hybrid Aspen Brand: Jefferies Nurseries Description: A columnar, seedless variety that's fast growing and tolerant of poor growing conditions; possesses a high resistance to Bronze Leaf Disease (BLD); has an aggressive root system, so don't plant near houses; makes a great windbreak or quick shade tree Ornamental Features Guardian™ Columnar Aspen has rich green deciduous foliage on a tree with a columnar habit of growth. The large heart-shaped leaves turn yellow in fall. Landscape Attributes Guardian™ Columnar Aspen is a deciduous tree with a strong central leader and a narrowly upright and columnar growth habit. Its relatively coarse texture can be used to stand it apart from other landscape plants with finer foliage. This tree will require occasional maintenance and upkeep, and is best pruned in late winter once the threat of extreme cold has passed. Gardeners should be aware of the following characteristic(s) that may warrant special consideration; Guardian™ Columnar Aspen is recommended for the following landscape applications; Planting & Growing Guardian™ Columnar Aspen will grow to be about 40 feet tall at maturity, with a spread of 10 feet. It has a low canopy with a typical clearance of 3 feet from the ground, and should not be planted underneath power lines. It grows at a fast rate, and under ideal conditions can be expected to live for 60 years or more. This tree should only be grown in full sunlight. It is an amazingly adaptable plant, tolerating both dry conditions and even some standing water. It is considered to be drought-tolerant, and thus makes an ideal choice for xeriscaping or the moisture-conserving landscape. It is not particular as to soil type or pH, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. This particular variety is an interspecific hybrid.
