(UPDATE: My recap of the Chicago Flower and Garden Show is here.)
My personal favorites:
Jeckle and Hyde-Prairie Restoration: I couldn't get a good photograph of this one, but it is spectacular in person. Walks you through a controlled burned to a fully restored prairie.
Great Performances Through the Eyes of a Child: The Chicago High School for Agricultural Sciences did an awesome job bringing three fairy tales to life.
Good vs.Evil: Inspired by "Wicked" this garden has a lot of small props that put a smile on your face.
Alice's Wonderland: An homage to Lookingglass Theater's Lookingglass Alice. The giant Queen of Hearts with the living wall dress is both unsettling and fascinating.
Spring Awakening: An urban potager garden that is both beautiful and edible.
Besides some creative garden themes there are a lot of ideas for container gardening and mixing the edible with the ornamental. The runs from March 6-14, 2010.