Alberta spruces are a dwarf evergreen shrub that grow extremely slowly. Often, they will only grow an inch a year. Albertas don’t get very tall. Their maximum height is about 10 ft. tall, but may takes as many as 40 years. They have a light green color that is easily kept by putting them in full sun. Alberta’s are virtually maintenance free. They keep their pyramidal shape naturally, so you don’t have to trim.