(Pictures provided by Greenscape Services)
Picea glauca ‘conica’ spiral
 
This conifer is prized for its foliage and provides a year round interest. The Dwarf Alberta Spruce is a good plant to use if you would like to make a topiary, and this plant in particular is already shaped into a spiral. This tree can grow to be 10-13' tall and 7-10' wide.