All parts of this beautiful plant are eaten except the roots. Young leaves and stems add a peppery accent to salads and sandwiches, or can be used in dishes as a watercress substitute. The flower blossoms may be minced and used to flavor butter, cream cheese or vinegar, and the whole flowers are colorful and delicious in salads or as a garnish. Nasturtium seeds and immature flower buds can be pickled and used like capers. See also flowers, edible.
From The Food Lover's Companion, Fourth edition by Sharon Tyler Herbst and Ron Herbst. Copyright © 2007, 2001, 1995, 1990 by Barron's Educational Series, Inc.