| 1978 | November | Berkeley | ||
| 1979 | November 16 - 18 | Newport Beach | ||
| 1980 | November 7 - 9 | Sacramento | Toshio Saburomaru, Ben Oki and Harry Hirao, Dan Robinson, Bob Kato | |
| 1981 | November 13 - 15 | San Diego | John Naka, Khan Komai, David Andrews, Warren Hill, Jim Barrett, Mas Takanashi, Roy Nagatoshi, Ko Tsushima | |
| 1982 | November 5 - 7 | San José | Tom Yamamoto; Susanne Barrymore, Warren Hill, Khan Komai, Melba Tucker, Mitsuo Umehara, Terry Ward | |
| 1983 | November - 6 | Long Beach | ||
| 1984 | November 2 - 4 | Oakland | Yasuji Matsuda (Japan, demo), Katsumi Kinoshita (demo), Toshio Saburomaro (demo & work); Khan Komai (work), Jim Barrett (work), Melba Tucker (work), Roy Nagatoshi (work), Harry Hirao (work), Terry Ward (work), Ben Oki (work), Mas Imazumi (work), Sandy Planting (work) | |
| 1985 | November 8 - 10 | Palm Springs | Dan Barton and John Naka | |
| 1986 | November 21 - 23 | Monterey | Yasuo Mitsuya, William N. Valavanis | |
| 1987 | November 5 - 8 | Anaheim | Masahiko Kimura (Japan) (Mar 31), where he first demonstrated and conducted a workshop outside of Japan; Susumu Sudo, John Naka | |
| 1988 | October 27 - 30 | Santa Rosa | Masamitsu Kubota, Kihachiro Kamiya, John Naka | |
| 1989 | (none in lieu of World Bonsai Convention in Omiya) | |||
| 1990 | November 1 - 4 | Burlingame | Masahiko Kimura (Japan), Mas Imazumi | |
| 1991 | October 31 - November 3 | San Diego | Shinichi Nakajima (Japan), John Naka, Ben Oki, Harry Hirao, John Naka | |
| 1992 | November 5 - 8 | Sacramento | Chase Rosade, Hiroshi Suzuki, Kathy Shaner | |
| 1993 | November 4 - 7 | Irvine | John Naka, Joe Harris, Hiroshi Suzuki, Warren Hill; Harry Hirao, Ben Oki, Susanne Barrymore, Roy Nagatoshi, John Uchida, Dave DeGroot, Dennis Makashima, Pat Brodie, Ted Matson, Larry Ragle, Lindsay Shiba, Ed Murakami | |
| 1994 | November 3 - 6 | San José | Joint BCI/GSBF; delegates from 9 countries; John Naka, Toshio Saburomaru, Yuji Yoshimura, Kihachiro Kamiya, Masamitsu Kubota; Melba Tucker, Mas Imazumi, Mike Page, Sandy Planting, Roy Nagatoshi, Dennis Makishima, Hiroshi Suzuki, Cheryl Manning, Mel Ikeda, Harry Hirao | |
| 1995 | November 2 - 5 | Pasadena | ||
| 1996 | November 7 - 10 | Sacramento | Suisho Nakayama (Japan), William N. Valavanis (New York, USA) | |
| 1997 | November 6 - 9 | San Diego | Convention XX |
Kunio Kobayashi (Japan), David DeGroot (Washington, USA) |
| 1998 | November 5 - 8 | San José | Convention XXI |
Headliners: Tohru Suzuki and Shinji Suzuki; Kathy Shaner, Roy Nagatoshi, Boon Manakitivipart, Sandy Planting, John Thompson, Jim Gremel |
| 1999 | November 11 - 14 | Anaheim | Convention XXII |
Headliners: Marc Noelanders, Gary Marchal, John Naka; Harry Hirao, Mas Imazumi, Mas Ishii, Boon Manakitivipart, Dennis Makishima, Ben Oki, Lindsay Shiba |
| 2000 | November 3 - 6 | Oakland | Convention XXIII |
Kunio Kobayashi (Japan); John Boyce, Pat Brodie, Fred & Dolly Fassio, George Fujita, Jim Gremel, Ruben Guzman, Harry Hirao, Mas Imazumi, Dennis Makishima, Boon Manakitivipart, Ted Matson, Sandy Planting, Kathy Shaner, Johnny Uchida, Thin Vu |
| 2001 | November 2 - 5 | Woodland Hills | Convention XXIV |
John Naka, Harry Hirao, Ben Oki, Kathy Shaner, Ted Matson, Kenji Miyata (Japan) |
| 2002 | October 17 - 20 | Sacramento | Convention XXV |
300 registrants from 70 California clubs and societies and visitors from out of state; Yasuo Mitsuya (Japan, demo: reworked some of his long-ago previously designed trees plus new material ); Mary Miller (work: tropical), Mel Ikeda (lect-demo: collecting), Kathy Shaner, Dennis Makishima, Cheryl Manning, Boon Manakitivipart, John Thompson (work: cork oak), Doug Philips (work: olive), Steven Faulk (work: styrax), Valerie Monroe (work: flowering quince) |
| 2003 | October 30 - November 2 | Fresno | Convention XXVI |
Shinji Suzuki, Walter Pall, Ben Oki, Hideko Metaxas |
| 2004 | November 3 - 4 | Santa Rosa | Harunobu Tokita (Japan), Yousuki Omizo (Japan), Marco Invernizzi (Italy), Mel Ikeda, William Valavanis, Boon Manikitivipart, Hideko Metaxas, Sean Smith | |
| 2005 | November 3 - 6 | Anaheim | Convention XXVIII |
John Thompson, Doug Phillips and Joel Pasco (work: grape dig); Kathy Benson (work), Jim Gremel (work), Doug Phillips (work), Ted Matson (work, tree critique, demo: group planting), Greg Brenden (work), Paul De Rose (work); Marco Invernizzi (tree critique; demo: prostrata juniper), Cheng Kung Cheng (tree critique, demo: carving on a San Jose juniper; work), Larry Ragle (suiseki critique); Dolly/Fred Fassio (work), John Thompson (work, demo: oak), Cindy Reed (work), Dennis Makishima (work; seminar: deciduous pruning & care); Ben Oki (tree critique; demo: old prostrata juniper; work), Tak Shimazu (demo: California juniper), Suthin Sukosolvisit (demo: Hinoki cypress & shohin; work), Kenji Miyata (demo: black pine; work), Cheryl Manning (demo: twisted pomegranate with Japanese technique), Min Hsuan Lo (demo: ficus; tree critique; work), Ed Nakanishi (demo: large rock planting from Hawaii; work), Mary Madison (demo: bald cypress; work), William N. Valavanis (lecture & slide show) |
| 2006 | November 2 - 5 | Sacramento | Convention XXIX |
Masahiko Kimura (Japan), Kathy Shaner, Lindsay Shiba |
| 2007 | October 31 - November 4 | Anaheim | Convention XXX |
Kunio Kobayashi (Japan), Warren Hill, Kathy Shaner, Pedro Morales; Harry Hirao, Ted Matson, Cary Sullivan-Valentine, Mel Ikeda, Bill Castellon, Steve Valentine, Bob Hilvers, Lindsay Shiba, Phil Tacktill, Janet Wanerka, Susanne Barrymore, Larry and Nina Ragle, Cindy Read |
| 2008 | October 29 - November 2 | Modesto | Convention XXXI |
Boon Manakitivipart, Martin Schmalenberg, Takashi Shimazu, Ted Matson, Steve Valentine, Scott Chadd, Peter Adams, Mel Ikeda, John Thompson, Johnny Uchida, Steve Vallentine, Al Keppler, Cary Sullivan Vallentine, Sam Adina, Al Nelson, Bob Shimon, and Richard McKinstry |
| 2009 | November 5 - 8 | Riverside | Convention XXXII |
Roy Nagatoshi (work: shohin twisted pomegranate amd critique and demo), Fred Miyahara (work: Japanese black pine), Kathy Shaner (seminar and demo and work: Foemina juniper and critique), Al Nelson (seminar), Dan Robinson (works: bougainvillea carving and Japanese black pine and critique), Mel Ikeda (work: cork bark elm), Lindsay Shiba (work: shohin Japanese boxwood), Larry Ragle (seminar), Mas Ishii (work: kishu shimpaku), John Thompson (work: Chinese quince), Tak Shimazu (work: Itoigawa shimpaku), Bob Hilvers (work: Kingsville boxwood), Peter Adams (seminar and critique), Kathy Benson (work: Mexican lime), Jim Gremel (work: Chinese quince), Peter Tea (work: Hokkaido elm), Ann Erb (work: trident maple) |
| 2010 | October 28 - 31 | Santa Clara | Convention XXXIII |
Harry Hirao, Kats Kinoshita, Kathy Shaner, John Thompson, Peter Tea, Boon Manakitivipart, Ted Matson, Gordon Deeg, Jim Gremel, Valerie Monroe |
| 2011 | October 27 - 30 | Riverside | Convention XXXIV |
Kathy Shaner, Ryan Neil, Pedro Morales, Roy Nagatoshi |
| 2012 | October 25 - 28 | Sacramento | Convention XXXV |
Ryan Neil, David Nguy, Kevin Willson, Kathy Shaner; honoring "Mr. California Juniper," Harry Hirao; "Raising the Bar," a First Judged Exhibit and the First All-California Native Tree Exhibit. |
| 2013 | October 31 - November 3 | Burbank | Convention XXXVI |
David DeGroot, Suthin Sukosolvisit, Peter Warren (UK) |
| 2014 | October 30 - November 2 | Sacramento | Convention XXXVII |
Joint w/ABS; Headliners: Peter Tea, Kathy Shaner, David DeGroot; seminars and workshops with Sam Adina, Ron Anderson, Yuko Carson, Juan Cruz, Gay Lynn Goetz, Dennis Makishima, Yuzo Maruyama, Hideko Metaxas, Frank Mihalik, Kenji Miyata, Seiji Morimae, David Nguy, Mike Pistello, Steve Price, Tak Shimazu, Bob Shimon, John "JT" Thompson. |
| 2015 | October 29 - November 1 | Riverside | Convention 38 |
Headliners: Bjorn Bjorholm and John Wang; Guest artists: David Nguy and Tak Shimazu; five workshops by these four artists. |
| 2016 | October 27 - 30 | Sacramento | Convention XXXIX |
Ryan Neil and Bjorn Bjorholm. |
| 2017 | October 25 - 29 | Riverside | Convention XL |
Kunio Kobayashi, David Nguy, and Boon Manakitivitpart; with Bill Castellon, Tom Elias, Frank Goya, Jim Gremel, Gasy Ishii, Peter Macasieb, Ted Matson, Frank Mihalic, Fred Miyahara, Pauline Muth, Mike Pistello, Steve Price, Kathy Shaner, Tak Shimazu, Bob Shimon, Cary Sullivan, Michael Sykes, Jonny Uchica, Bill Valavanis, and Steve Valentine. |
| 2018 | October 24 - 28 | Sacramento | Convention XLI |
Suthin Sukosolvisit, Bjorn Bjorholm, and Yasuo Mitsuya. |
| 2019 | October 24 - 27 | Riverside | Convention XLII |
Taiga Urushibata (Japan), Enrique Castaño (Mexico), Ryan Bell; Kathy Shaner, David Nguy, Peter Macasieb, Lucy Judd, amd Tak Shimazu. |
| 2020 | October 30 - November 1 | Santa Nella | Postponed until 2021 due to COVID-19 concerns. | |
| 2021 | October 2 - 3 | Santa Nella | ||
| 2022 | October 8 - 9 | Santa Nella | ||
| 2023 | October 20 - 22 | Santa Nella | Bjorn Bjorholm |
| 1981 | September 12 - 13 | Rochester, NY | Over 160 fanciers from 15 states and 2 Canadian provinces attended; William N. Valavanis, William Breiten, Doris W. Froning, Marion Gyllenswan, F. Chase Rosade, Lynn K. Porter, Keith B. Scott, Jerald P. Stowell, David Andrews | |
| 1982 | September 11 - 12 | Rochester, NY | F. Chase Rosade, Lynn Porter, Lynn Perry Alstadt, Keith B. Scott, William Breiten, Marion Gyllenswan, Marian Borchers, William N. Valavanis | |
| 1983 | September 10 - 11 | Rochester, NY | Lynn Perry Alstadt, David L. Andrews, Harriet A. Henderson, Kenneth W. Mudge, Richard K. Ota, Keith B. Scott, Donald P. Torppa, William N. Valavanis | |
| 1984 | September 8 - 9 | Rochester, NY | 150 registrants; William N. Valavanis, Keith B. Scott, Donald P. Torppa, George L. Good, John Y. Naka, Lynn K. Porter, Lynn Perry Alstadt, F. Chase Rosade | |
| 1985 | September 7 - 8 | Rochester, NY | Nearly 200 registrants from Canada, Trinidad, and throughout the U.S.; Louis D. Albright, Robert F. Drechsler, Marion Gyllenswan, Tony Mihalic, F. Chase Rosade, J. D. Vertrees, William N. Valavanis | |
| 1986 | September 6 - 7 | Rochester, NY | Over 200 registrants; William N. Valavanis, Arnold J. Copeland, Mikio Oshima, John Y. Naka, Harvey B. Carapella, Jack Billet, F. Chase Rosade | |
| 1987 | September. 12 - 13 | Rochester, NY | Over 200 registrants; Tony and Frank Mihalic, Harry Tomlinson (UK), Marion Gyllenswan, William N. Valavanis, Harvey B. Carapella, Jack Billet | |
| 1988 | Rochester, NY | |||
| 1989 | Rochester, NY | |||
| 1990 | Rochester, NY | |||
| 1991 | Rochester, NY | John Biel, Reiner Goebel, Nick Lenz, Dan Robinson, Harold Sasaki, Yuji Yoshimura, William N. Valavanis | ||
| 1992 | Rochester, NY | |||
| 1993 | Rochester, NY | |||
| 1994 | Rochester, NY | |||
| 1995 | Rochester, NY | |||
| 1996 | Rochester, NY | |||
| 1997 | September 5 - 7 | Rochester, NY | People representing 20 states, Germany, Columbia, the Netherlands, and Canada were in attendance; Arthur Skolnik, Marc Noelanders (Belgium), William N. Valavanis, Chase Rosade, Jane Nelson, Bruce Baker, Joe Harris | |
| 1998 | September 11 - 13 | Rochester, NY | 135 people attended; Qingquan Zhao (China), Karen Albert, William N. Valavanis, Masahiro Furukawa, Rodney Clemon, Brussel Martin | |
| 1999 | September 10 - 12 | Rochester, NY | Julian R. Adams, Joe Harris, Dennis Makishima, Martin Schmalenberg, Kathy Shaner, Suthin Sukosolvisit, William N. Valavanis | |
| 2000 | Rochester, NY | |||
| 2001 | Rochester, NY | |||
| 2002 | Rochester, NY | |||
| 2003 | September 5 - 7 | Rochester, NY | Shinji Suzuki (Japan, demo: shaping collected juniper & work: Rocky Mountain juniper, critique), John Biel (Canada, demo: refining collected slippery elm & work), Andrew Smith (South Dakota, demo: creating Phoenix graft spruce on Rocky Mountain juniper driftwood & work), Boon Manikitivipart (California, demos: shaping collected pine & works: Black Hills spruce & Ponderosa pine, critique), William N. Valavanis (New York, demo: enhancing collected bonsai), Hideo Metaxas (California, demo: the art of bonsai display, critique). BCI Board and annual meetings on Sept. 4 at this alternative program to the cancelled Taipei, Taiwan BCI Convention. | |
| 2004 | September 10 - 12 | Rochester, NY | Kenji Miyata, Colin Lewis, Fred Miyahara, Pedro J. Morales, Doug Philips, Donald P. Torppa, Wm. N. Valavanis | |
| 2005 | September 9 - 11 | Rochester, NY | Dale Cochoy, Yasuo Mitsuya, Martin Schmalenberg, Kathy Shaner, Arthur Skolnik, William N. Valavanis | |
| 2006 | September. 8 - 10 | Rochester, NY | Harvey Carapella, Kora Dalager, David Kreutz, Colin Lewis, Kathy Shaner, Sean Smith, Wm. N. Valavanis | |
| 2007 | September 6 - 9 | Rochester, NY | Paul Goff (England), Kenji Miyata (Japan), Pedro Morales (Puerto Rico), Arthur Skolnik (Canada); Suthin Sukolosvisit, Michael Hagedorn, Doris Froning, Julian Adams, Harvey Carapella, Dale Cochoy, Jim Doyle, David Kreutz, Robert Mahler, Sean Smith, and William N. Valavanis | |
| 2008 | September 4 - 7 | Rochester, NY | Peter D. Adams, David Easterbrook, Arthur Joura, Brussel Martin, Matt Ouwinga, Suthin Sukolosvisit, Wm. N. Valavanis | |
| 2009 | September 10 - 13 | Rochester, NY | Nobuichi Urushibata (Japan), Peter Warren (England), Julian Adams, Harvey Carapella, Sean Smith, Suthin Sukosolvisit, Erik Wigert, Jack Wickle, Wm. N. Valavanis | |
| 2010 | September 9 - 12 | Rochester, NY | David Easterbrook, Mary Madison, Ryan Neil, Martin Schmalenberg, Wm. N. Valavanis | |
| 2011 | June 3 - 5 | Rochester, NY | FINAL SEMINAR; Arthur Skolnik, Suthin Suthin Sukolosvisit, Wm. N. Valavanis |
INTERNATIONAL STONE APPRECIATION SYMPOSIUM (ISAS)
.
| 2002 | October 4 - 6 | Harrisburg/Hershey, PA | Arishige Matsuura (Chairman of the Japanese Suiseki Association), Martin Pauli (Switzerland), Felix Rivera, Hideko Metaxas, Kemin Hu, William Valavanis. In addition, 6 other talented artists and collectors shared openly of their knowledge and experience: Pat Coen, Jim Doyle, Jim Hayes, Howard McNeal, Marty Schmallenberg, Sean Smith, and Arthur Skolnik (Canada). | |
| 2003 | ||||
| 2004 | October 1 - 3 | Harrisburg, PA | Seiji Morimae (Chairman of the Japanese Suiseki Association), Willie Benz (Germany, President of the European Suiseki Association), Chiara Padrini (Italy), Arthur Skolnik (Canada), Hideko Metaxas, Larry Ragel, Pat Coen, Sean Smith, William Valavanis, Martin Schmalenberg, Jim Doyle. | |
| 2005 | ||||
| 2006 | September 28 - October 1 | Grantville/Harrisburg, PA | Uhaku Sudo (Japan, headmaster of the Keido School of display, replaced originally-scheduled Seiji Morimae, Mr. Sudo is Mr. Morimae's sensei); also, Aiseki Kai members Jim Greaves (lect: West Coast Suiseki), Hideko Metaxas (lect: Ikebana), Mas Nakajima (lect: Suiseki Display), and Dr. Tom Elias (lect: the Mystery of Chrysanthemum Stones). | |
| 2007 | ||||
| 2008 | October 2 - 5 | Grantville, PA | Seiji Morimae (Japan), I. C. Su (Taiwan), Peter Warren (England), Kemin Hu (MA, USA), and Xiaoshan Yang (IN, USA). | |
| 2009 | ||||
| 2010 | September 30 - October 3 | Harrisburg/Hershey/Grantville, PA | Seiji Morimae (Japan, "Japanese Suiseki Display I and II," "Japanese Suiseki Philosophy," and "Japanese Aesthetics" and critique); Kemin Hu ("Chinese Stone Appreciation I and II"); Larry Ragle ("Stone Collecting In California" and "Keido Study In Japan" and critique), Rafael Monje Garcia ("Collecting Spanish Suiseki" and critique); Peter Warren ("Japanese Suiseki Aesthetics"); James F. Doyle (work: "Collecting Suiseki," limited to 8 persons); Arthur Skolnik (Canada, work: "Japanese Table Top Dry Garden," limited to 10 persons); Sean Smith (lect: Kiri Bako (Wooden Box Making)); William N. Valavanis (lect: "Stone Placement in Suiban"). | |
| 2011 | ||||
| 2012 | October 4 - 7 | Harrisburg/Hershey/Grantville, PA | Seiji Morimae, Kemin Hu, Anna Rosenblum (Richard's daughter), plus programs on Korean suseok, accent plants with stones, art and history of incense, & more. | |
| 2013 |
INTERNATIONAL STONE COLLECTION ASSOCIATION (ISCA)
.
| 1991 | May | Taipei, Taiwan | ||
| 1992 | ||||
| 1993 | South Korea | |||
| 1994 | Japan | |||
| 1995 | April 14 - 16 | Taipei, Taiwan | About 300 suiseki on display, 150 from Taiwan and the rest from Hong Kong, Indonesia, Japan, Korea, and Malaysia | |
| 1996 | May | Seoul, Korea | Over 550 stones on display | |
| 1997 | Japan | |||
| 1998 | September 5 - 7 | Kuala Lumpur, Malaysia | About 280 stones on display from 8 countries | |
| 1999 | March | Taipei, Taiwan | ||
| 2000 |
KOREAN BONSAI ASSOCIATION
(Korean Bonsai Growers Cooperative) (KBA)
.
| 1986 | April 22 - May 17 | |||
| 1987 | ||||
| 1988 | Sept. 30 - Oct. 3 | Seoul | ||
| 1989 | ||||
| 1990 | March 5 - 9 | Seoul | ||
| 1991 | ||||
| 1992 | October 9 - 13 | Seoul | ||
| 1993 | August 6 - 15 | Seoul | Kim Seok Ju won Silver Prize. | |
| 1994 | October 28 - November 1 | Seongnam | ||
| 1995 | October 27 - 31 | Seoul | Kim Seok Ju won Gold Prize. | |
| 1996 | May 31 - June 9 | Seoul | Kim Seok Ju won Gold Prize. | |
| 1997 | May 3 - 18 | Ulsan | Kim Seok Ju won Gold Prize. | |
| 1998 | October 12 - 18 | Gwacheon | ||
| 1999 | October 14 - 18 | Seongnam | ||
| 2000 | ||||
| 2001 | June 1 - 5 | |||
| 2002 | October 17 - 20 | Kim Seok Ju won Grand Prize. | ||
| 2003 | October. 22 - 26 | |||
| 2004 | May 19 - 22 | |||
| 2005 | May 9 - 12 | |||
| 2006 | May 19 - 25 | |||
| 2007 | October 3 - 7 | Incheon | ||
| 2008 | May 6 - 9 | Daejeon | ||
| 2009 | October 28 - 31 | Pocheon | ||
| 2010 | ||||
| 2011 | ||||
| 2012 | ||||
| 2013 | ||||
| 2014 | November 18 - 23 | Seoul | ||
| 2015 | ||||
| 2016 | ||||
| 2017 | ||||
| 2018 | October 4 - 6 | Seoul | ||
| 2019 | ||||
| 2020 | ||||
| 2021 | November 11 - 14 | Sejong | 120 bonsai pieces, including both stonework and woodwork, along with 120 herbaceous plants (wild flowers) | |
| 2022 | October 13 - 16 | Sejong | ||
| 2023 |
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