Halloween isn't even in Chicago's rearview and plans for the city's two most notable Christmas trees are already well under way.

Chicagoans selected a 64-foot Colorado Spruce from Prospect Heights, Ill. as its 2012 Christmas tree, according to ABC Chicago. Voters cast their ballot online earlier this summer, choosing from trees around the area.

Colorado Spruces are popular picks for the city's Christmas tree contest -- in 2011, all three finalists were also of the Colorado Spruce variety.

Local landscaping company iTree.com says the Colorado Spruce, also called the Blue Spruce, is an "extremely tough, rugged, and cold-hardy tree making it the preferred choice for windbreaks."

(Need help getting in the holiday mood? Check out photos of Chicago's two most iconic Christmas trees below.)

Meanwhile at the Macy's flagship on State Street, a team is busily assembling the 45-foot artificial tree in the historic Walnut Room. Macy's Lauren Rapisand told CBS Chicago this year marks the 105th year Macy’s, formerly Marshall Field’s, has had the tree.

Each year, the department store erects the Great Tree--which in earlier years was a live tree-and adorns it with more than 1,200 themed ornaments and 25,000 lights.

Marking "the official start of the holiday season," the city's 99th annual Christmas tree lighting in Daley Plaza will take place Tuesday, Nov. 20 at 5 p.m. Macy's will flip the switch on its tree this Saturday, Nov. 3 at noon.

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  • Final Marshall Field's Christmas Display

    This photo, taken on November 26, 2005 by Flickr user <a href="http://www.flickr.com/photos/laffy4k/">laffy4k</a>, shows the much-loved--and final--Marshall Field's Christmas display before the store became a Macy's flagship in 2006.

  • Macy's Christmas Tree 2009

    Taken inside the famed Walnut Room, the 2009 Macy's Christmas tree on State Street.

  • Macy's Christmas Tree 2006

    The 2006 Macy's Christmas tree glitters in the Walnut Room.

  • Christmas At Macy's 2010

    Macy's on State Street decked the halls in 2010--below the iconic Tiffany Ceiling.

  • Macy's Christmas Windows in Chicago

    The 2009 "Letters To Santa" Christmas window display.

  • Macy's Christmas Window 2011

    From the 2011 "Steampunk"-inspired display created by Spaeth Design of New York.

  • O Christmas Tree

    Another dazzling tree lights up Macy's on State Street.

  • Letters To Santa

    A portion of the "Letter's To Santa" window display at Macy's on State Street.

  • Macy's Great Tree

    Macy's Christmas tree is seeing red in 2008.