Nominees for the 2011 Annual Award were:

Abundant Beauty: The Adventurous Travels of Marianne North, Botanical Artist
Marianne North (Greystone Books, 2010)

Alpines, from Mountain to Garden
Richard Wilford (Kew Publishing, 2010)

Armitage's Vines and Climbers: A Gardener's Guide to the Best Vertical Plants
Allan M. Armitage (Timber Press, 2010)

Art of Plant Evolution
W. John Kress and Shirley Sherwood (Kew Publishing, 2009)

Charleston Gardens and the Landscape Legacy of Loutrel Briggs
James R. Cothran (The University of South Carolina Press, 2010)

Crocuses: A Complete Guide to the Genus
Jānis Rukšāns (Timber Press, 2010)

Designing the Maine Landscape
Theresa Mattor and Lucie Teegarden (Down East Books, 2009)

Flora Mirabilis: How plants have shaped world knowledge, health, wealth, and beauty
Catherine Herbert Howell (National Geographic, 2009)

From Another Kingdom: The Amazing World of Fungi
Edited by Lynne Boddy and Max Coleman (Royal Botanic Garden, Edinburgh, 2010)

Green flowers: unexpected beauty for the Garden Container or Vase
Alison Hoblyn (Timber Press, 2009)

How to Grow a School Garden
Arden Bucklin-Sporer and Rachel Kathleen Pringle (Timber Press)

In the shadow of slavery : Africa's botanical legacy in the Atlantic world
Judith A. Carney and Richard Nicholas Rosomoff (University of California Press, 2009)

Kingdom Fungi: The Biology of Mushrooms, Molds, and Lichens
Steven L. Stephenson (Timber Press, 2010)

The Museum of Economic Botany at the Adelaide Botanic Garden : a souvenir
Peter Emmett and Tony Kanellos, eds (Botanic Gardens of Adelaide)

Natural History Drawings: The Complete William Farquhar Collection, Malay Peninsula 1803–1818 John Bastin and Kwa Chong Guan (Editions Didier Millet and the National Museum of Singapore)

Oak Spring Herbaria; Herbs and herbals from the Fourteenth to the Nineteenth Centuries
Lucia Tongiorgi Tomasi and Tony Willis (Oak Spring Garden Library, 2009)

Old and new South American botanical art: The Mutis & Shirley Sherwood collections
(Real Jardin Botanico (CSIC), Madrid)

Poisonous Plants: A guide for parents & childcare providers
Elizabeth A. Dauncey (Kew Publishing, 2010)

Public Produce: The New Urban Agriculture
Darrin Nordahl (Island Press, 2009)

Romantic Gardens Nature, Art and Landscape Design
Elizabeth Barlow Rogers, Elizabeth S. Eustis and John Bidwell (David R. Godine Publisher Inc., 2010)

Seeds, Sex, and Civilization; How the Hidden Life of Plants Has Shaped Our World
Peter Thompson & Stephen Harris (Thames & Hudson (distributed in the USA by W. W. Norton & Company, Inc.))

Teaming with Microbes: A Gardener's Guide to the Soil Food Web. Revised Edition
(Jeff Lowenfels and Wayne Lewis (Timber Press, 2010)

Unbounded Practice : Women and Landscape Architecture in the Early Twentieth Century
Thaisa Way (University of Virginia Press, 2009)

Why People Need Plants
Edited by Carlton Wood and Nicolette Habgood (Kew Publishing in association with the Open University)

Wild Urban Plants of the Northeast: A Field Guide
Peter Del Tredici (Cornell University Press, 2010)

Alexander von Humboldt and the Botanical Exploration of the Americas
Lack, Walter H (Prestel, 2010)

Baboquivari Mountain Plants: identification, ecology and ethnobotany
Daniel F. Austin (The University of Arizona, Tucson, Arizona, 2010)

Flora: The Aztec Herbal
Martin Clayton, Luigi Guerrini, Alejandro de Ávila (The Royal Collection, 2009)

Great Experiment in Conservation Voices from the Adirondack Park
Edited by William F. Porter, Jon D. Erickson, and Ross S. Whaley (Syracuse University Press, 2009)

Kew Plant Glossary: an illustrated dictionary of plant identification terms
By Henk Beentje, with illustrations by Juliet Williamson (Kew Publishing, 2010)

Keywords in American Landscape Design
Therese O'Malley (Center for Advance Study in the Visual Arts, National Gallery of Art in association with Yale University Press, 2010)

Medical Authority and Englishwomen's Herbal Texts, 1550-1650
Rebecca Laroche (Ashgate Publishing Company, 2009)

Milk Mushrooms of North America: A Field Identification Guide to the Genus Lactarius
Alan E. Bessette, David B. Harris, and Arleen R. Bessette (Syracuse University Press, 2009)

Native American Food Plants: An Ethnobotanical Dictionary
Daniel E. Moerman (Timber Press, 2010)

Of Books and Botany in Early Modern England-Sixteenth-Century Plants and Print Culture
Leah Knight (Ashgate Publishing Company, 2009)

Planting and Maintaining a Tree Collection
Simon Toomer (Timber Press, 2010)
Trees and Forests: a colour guide
Bryan G. Bowes, ed. (Manson Publishing, 2010)

Urban Ecology
Edited by Kevin J. Gaston (Cambridge University Press, 2010)