This is a Colorado blue spruce, Picea pungens. In Europe it is often called 'blue fir tree'. It is used as a garden plant in landcaping. This one really comes from Colorado. It is only 40 cm high and quite promising. Yesterday I cleaned it and did some woodwork. Now it will be left alone for teh season and stlyed next spring. This is a great rarity. I have not yet seen a good Colorado blue spruce bonsai.
1)and 2) October 2006: As found in the Rocky Mountains.
2) October 2006: in the pot by Derek Aspinall after editing
3)and 4) July 2007: as of yesterday after cleaning