This became a reality on October 1, 1990 when the American Bonsai Pavilion was dedicated to two American bonsai masters. The Yuji Yoshimura Educational Center is a work space and a classroom. The John Y. Naka North American Pavilion provides the display area for the North American Bonsai Collection. With donations from the bonsai community, the National Bonsai and Penjing Museum grew greatly in the early 1990s. The Kaneshiro Tropical Conservatory (named for "Papa" Kaneshiro, the father of Hawaiian bonsai) was added in 1993 for delicate trees. A behind-the-scenes greenhouse was also added for trees in development. The Mary E. Mrose Exhibit Gallery was completed in 1996, and the NBF website was launched three years later. "Awakening the Soul: The National Viewing Stone Collection" (2000) became the first book published by the National Bonsai Foundation. The following year the NBF sponsored the first North American Bonsai Pot Competition for ceramic artists, published "The Bonsai Saga: How the Bicentennial Collection Came to America" by former U.S. National Arboretum Director, Dr. John Creech, and published a translation into English of "Forest, Rock Planting & Ezo Spruce Bonsai" by the Japanese bonsai master Saburo Kato. With significant funding from NBF, in 2003 the Maria Vanzant Upper Courtyard and the H. William Merritt Entrance Gate to the Kato Family Japanese Stroll Garden were dedicated. The NBF also became a membership organization that year, supported by annual dues as well as by contributions. A number of bonsai societies, related groups, and individuals then became members. The NBF, along with the U.S. National Arboretum and the Potomac Bonsai Association, hosted the World Bonsai Friendship Federation's 5th World Bonsai Convention in Washington D.C. in late May 2005. Also that year, "John Naka’s Sketchbook" and the "Proceedings of the International Symposium on Bonsai and Viewing Stones" (which was held in 2002) were both published by NBF. The completion of the Rose Family Garden and the paving of the lower courtyard were accomplished with NBF funds. In 2011 the "Campaign For The Japanese Pavilion: A Gift Renewed" was established to raise funds for the renovation and improvement of that Pavilion which had been damaged over the years from exposure to the elements.