Copyright © 2014 by Ruth Rogers Clausen and Thomas Christopher.
Photography credits on page 426. All rights reserved.
Published in 2014 by Timber Press, Inc.

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6a Lonsdale Road

133 S.W. Second Avenue, Suite 450

London NW6 6RD

Portland, Oregon 97204-3527

timberpress.co.uk

timberpress.com

Cover and text design by Laken Wright

Library of Congress Cataloging-in-Publication Data
Clausen, Ruth Rogers, 1938-
   Essential perennials: the complete reference to 2700 perennials for the home garden/Ruth Rogers
Clausen and Thomas Christopher; photographs by Alan L. Detrick and Linda Detrick.—First edition.
       pages cm
   Includes index.
   ISBN 978-1-60469-672-1
  1. Perennials—Handbooks, manuals, etc. I. Christopher, Thomas. II. Title.
   SB434.C57 2015
   635.9’32—dc23

2014020896

A catalog record for this book is also available from the British Library.