Picea pungens
Seedlings are 12-18 inches tall.
 
One of the more popular conifers.  It has silvery blue-green needles and an almost perfect Christmas tree shape.  It is great as a windbreak or for privacy while also providing food and shelter to a handful of bird species.  At maturity, this tree can reach 50-75 feet in height and have a spread of 10-20 feet.
Full sun is ideal while it can adapt to most soil types.  It requires normal moisture has a moderate tolerance to flooding and drought.