First lady Michelle Obama appeared on the "Late Show With David Letterman" on Tuesday to do the "Top Ten" list, "Top Ten Fun Facts About Gardening":
No. 10: Gardening was invented in 1822 by Albert Gardener.
No. 9: Plant avocados, tomatoes, onions and cilantro together and grow a guacamole tree.
No. 8: Eggplants were originally cultivated for use as doorstops.
No. 7: In his lifetime, the average American will eat half a radish.
No. 6: The largest zucchini ever grown contained a Starbucks.
No. 5: Later this year the Supreme Court will finally rule on "tomato" vs. "tomahto."
No. 4: If you have an actual green thumb, it might be scurvy.
No. 3: Lettuce is 96 percent water and 4 percent lettuce.
No. 2: The White House tool shed contains shovels, trowels and Weed Whacker One.
No. 1: With enough care and effort you can grow your own Barack-oli.
Michelle Obama, who is promoting a new book about the White House "kitchen garden," is a frequent guest on late-night television, having appeared on the "Late Show," "The Tonight Show With Jay Leno" and "The Daily Show," among others.
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