Your planting zone is either 5b (- 15 to -10 F) or 6a (-10 to -5 F) depending on which part of the state you live. The Western exposure is the warmest and so plants on that side of the house may require extra watering. I'm in Texas, so I'm not really how sure how warm it gets where you are.
The University of Missouri's extension service offers these documents:
http://extension.missouri.edu/explor...es/hort/#Trees
# G6800, Selecting Landscape Plants: Shade Trees
# G6805, Selecting Landscape Plants: Flowering Trees
# G6810, Selecting Landscape Plants: Uncommon Trees for Specimen Plantings
# G6815, Selecting Landscape Plants: Needled Evergreeens
# G6820, Selecting Landscape Plants: Broad-Leaved Evergreens
# G6825, Growing Azaleas and Rhododendrons
# G6830, Selecting Landscape Plants: Deciduous Shrubs
# G6835, Selected Ground Covers for Missouri
# G6840, Selecting Landscape Plants: Ornamental Vines