Acknowledgments & Disclaimer Author: Bree Sposato

Photo Credits in order of appearance: Simon Watson/Botanica/Jupiter Images,Tina Rencelj/Shutterstock, Hemera Technologies/Photos.com/Jupiter Images (2), Stockdisc Classic/Getty Images, Nigel Cattlin/Photo Researchers, Inc., Astrid & Hanns-Frieder Michler/Photo Researchers, Inc., Nigel Cattlin/Photo Researchers, Inc. (2), Scott Bauer/Photo Researchers, Inc., Nigel Cattlin/Photo Researchers, Inc., Dave Bevan/GardenWorld Images, Stephen Dalton/Photo Researchers, Inc., Gary Meszaros/Photo Researchers, Inc., Nigel Cattlin/Holt Studios International Ltd/Alamy, Nigel Cattlin/Photo Researchers, Inc., Craig Holmes/Alamy, Nigel Cattlin/Holt Studios International Ltd/Alamy, Perennou Nuridsany/Photo Researchers, Inc., Adrian Thomas/Science Photo Library/Photo Researchers, Inc., Alan & Linda Detrick/Photo Researchers, Inc., Thomas Hagen/Science Photo Library/Photo Researchers, Inc., Ann Pickford/Science Photo Library/Photo Researchers, Inc., Clay Perry/Corbis, Chris B. Stock/Science Photo Library/Photo Researchers, Inc., Sally McCrae Kuyper/Science Photo Library/Photo Researchers, Inc., MedioImages/Corbis, W. Wayne Lockwood, M.D./Corbis, David Muench/Corbis, J D K Webb/Science Photo Library/Photo Researchers, Inc., Patrick Johns/Corbis, Donald R. Wright/Science Photo Library/Photo Researchers, Inc., Byron Jorjorian/Photo Researchers, Inc., Stephen Chiang/Workbook Stock/Jupiter Images, Geoff Bryant/Photo Researchers, Inc., Liz Cole/GardenWorld Images, Sally McCrae Kuyper/Science Photo Library/Photo Researchers, Inc., Luca Trovato/Botanica/Jupiter Images, Photos.com/Jupiter Images, Vincent & Jennifer Keane/Lucence Photographic, Steven Nilsson/Botanica/Jupiter Images, Douglas Peebles/Corbis, Vincent & Jennifer Keane/Lucence Photographic, Lucidio Studio Inc./Corbis, Mrs. W. D. Monks/Science Photo Library/Photo Researchers, Inc., Anthony Cooper/Science Photo Library/Photo Researchers, Inc., Maria Mosolova/Science Photo Library/Photo Researchers, Inc., Trevor Sims/GardenWorld Images, T. McGlinchey/GardenWorld Images, Chris Wheeler/Science Photo Library/Photo Researchers, Inc., Kevin Schafer/Corbis, Vincent & Jennifer Keane/Lucence Photographic, Gregory K. Scott/Photo Researchers, Inc., Vincent & Jennifer Keane/Lucence Photographic (3), Malcolm Thomas/Science Photo Library/Photo Researchers, Inc., Daisy Rae/Botanica/Jupiter Images, GWI/GardenWorld Images, Kaj R. Svensson/Photo Researchers, Inc. Illustrations by Precision Graphics.

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