Answer: Dwarf Alberta spruces are very slow growing - only 2-4 inches per year - but will eventually reach 6' in height. I think plants look best when the container is about one third as tall as the entire plant. So if your plants are currently 3 feet tall, use a container that is at least 12-18 inches tall. If your plants are 5' tall, use a container that is 18-24 inches tall. The spruces' will have ample room for root growth and they won't look top heavy or lost in the wrong sized container. Hope this helps you decide on the size of container. Of great importance is that the container have adequate drainage holes. Enjoy your new plants!
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