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GROWTH
PER YEAR


Miniature........
less than 3�

Dwarf............
3-6�

Intermediate.....
6-12�

Large............
more than 12�





Hardiness Zones



Picea pungens 'Walnut Glen'


The map of United States has been divided into hardiness zones based on ten degree Farenheit difference in annual average minimum temperature. This map can help you choose the plants that will perform best in your garden. The USDA Map is shown below:

 


Zones

alaska
Zones
Zone 1 (below -50 degrees F)
Zone 2 (-50 to -40 degrees F)
Zone 3 (-40 to -30 degrees F)
Zone 4 (-30 to -20 degrees F)
Zone 5 (-20 to -10 degrees F)
Zone 6 (-10 to 0 degrees F)
Zone 7 (0 to 10 degrees F)
Zone 8 (10 to 20 degrees F)
Zone 9 (20 to 30 degrees F)
Zone 10 (30 to 40 degrees F)

Please prune the dwarf Blue Spruce to return to the top.

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All photos copyright by Jim Smith and may not be used in any manner without the authors written consent.