When choosing dwarf Alberta spruce for pots, consider miniature varieties, like Tiny Tower (Picea glauca conica ‘MonRon’). This little cutie reaches a maximum height of 4 to 6 feet tall and up to 2 feet wide. The slow growth rate means you can keep it tucked into containers for a few years. Tiny Tower has bright green leaves that shift to gray as they mature. It’s hardy in Zones 3 to 8. At Christmas, you’ll often see mini Christmas trees in pots. These are usually dwarf Alberta spruce and can be planted into the landscape after the holiday.