Question
We have a 15 ft. Blue Spruce and we would like to move it to build a new garage.  What are the odds of it surviving?  If we are not able to move it is there a way to make seedlings from this tree to grow in another spot.  This tree is sentimental to the family.

Answer
These trees are approaching being too large to move. It will take a machine ( a tree spade) to properly move these trees.

Evergreens should be moved earlier in the fall than deciduous plants so they have time to form new roots. They need at least 6 weeks before the ground freezes. In the spring, Evergreens can be planted up to 4 weeks after deciduous trees have opened their leaves, providing that the newly planted trees receive adequate water.

When you want to dig up a tree or shrub for transplanting, retain as much of the root system as possible. all ages of evergreens, can be successfully moved only if a ball of soil is left around the roots. The exposed roots should be protected with moist burlap or newspaper or with polyethylene sheeting. Every effort should be made to reduce root exposure to wind and sun, keeping the ball as moist as possible. It's best to prepare the hole before digging up the tree you wish to move.

Size of the root ball and size of the hole:

For deciduous trees and shrubs the soil ball should be:

Width = 9-12 in. in diameter/every 1 in. of tree diameter
Depth = 6 in./every 1 in. of tree diameter

For example: A tree trunk 2 inches wide would need a soil ball of 18-24 inches wide and 12 inches deep.

Dig the new hole twice the size of the rootball and as deep so the new ground level is the same as the top of the rootball. Fill the hole with good top soil. Mulch around the trees with not more than 3 inches of mulch water with 1 inch of water each week.

Web link to the tree spade

http://www2.vermeer.com/vermeer/NA/en/N/dealer_locator