Columnar Trees Zone 5
This is an example of a contemporary backyard landscape in chicago.
Photo by Koreman landscape company
To get the longest container life of a potted conifer, choose a slow-growing or dwarf variety for your region, such as a dwarf white spruce (picea glauca ‘conica’, usda zones 2 to 8; find your zone). at the nursery, select a tree in a 5-gallon, 10-gallon or 15-gallon container that looks healthy and vigorous, showing no brown needles or signs of disease. depending on the size you buy, these trees can range from around $30 to $100.