:Expo '90

{{Short description|International gardening exposition held in Tsurumi Ryokuchi, Osaka}}

{{Infobox World's Fair

| box_width =

| class = Horticultural

| category =

| image = EXPO 1990 Central Gate.JPG

| image_width =

| caption = Central gate of Expo

| year = 1990

| name = Expo '90

| motto = The Harmonious Coexistence of Nature and Mankind

| building =

| area = 346 acres

| invent =

| visitors = 23,126,934

| mascot = "Hanazukin-chan"

| organized =

| cnt = 83

| org = 55

| biz =

| country = Japan

| city = Osaka

| venue = Tsurumi Ryokuchi Park

| coord = {{coord|34|42|43.8|N|135|34|27|E|type:landmark}}

| cand =

| award = {{start date|1986|06|05}}

| open = {{start date|1990|04|01}}

| close = {{start date|1990|09|30}}

| prevexpo = International Garden Festival

| prevcity = Liverpool

| nextexpo = 1992 Floriade

| nextcity = Zoetermeer

| suppl =

| prevsuppl = World Expo 88

| prevsupcity = Brisbane

| nextsuppl = Genoa Expo '92

| nextsupcity = Genoa

| prevunho = Expo '70

| prevunhocity = Osaka

| nextunho = Seville Expo '92

| nextunhocity = Seville

| simuni =

| simspe =

| simhor =

| simoth =

| website =

}}

{{Nihongo|Expo '90|国際花と緑の博覧会|Kokusai Hana to Midori no Hakurankai}} or The International Garden and Greenery Exposition, organized as a part of the International Expositions Convention, was the first large-scale international gardening exposition in Asia and focused on the theme of the "Harmonious Coexistence of Nature and Mankind."{{cite web|url=http://www.expo90.jp/english/index.html|title=財団法人 国際花と緑の博覧会記念協会：English：Expo'90 Foundation|access-date=3 November 2011|archive-url=https://web.archive.org/web/20111021171705/http://www.expo90.jp/english/index.html|archive-date=21 October 2011|url-status=dead}} The exposition was held in Tsurumi Ryokuchi, Osaka[http://www.aiph.org/site/index_en.cfm?act=teksten.tonen&parent=4683&varpag=4936#CategoryA1|AIPD Exhibitions, history] {{Webarchive|url=https://web.archive.org/web/20111015174128/http://www.aiph.org/site/index_en.cfm?act=teksten.tonen&parent=4683&varpag=4936#CategoryA1{{!}}AIPD |date=2011-10-15 }}. Retrieved 3 November 2011. for 183 days, from Sunday, April 1 to Sunday, September 30, 1990. The convention included participation from 83 countries and 55 international organizations and attracted over 23,126,934 visitors.

One of its main activities was to establish the annual International Cosmos Prize.{{cite web|url=http://www.expo-cosmos.or.jp/about_e.html#01motive|title=about International Cosmos Prize|access-date=3 November 2011|archive-url=https://web.archive.org/web/20111021213314/http://www.expo-cosmos.or.jp/about_e.html#01motive|archive-date=21 October 2011|url-status=dead}}

This was an international horticultural exposition recognized by both the Bureau International des Expositions (BIE){{Cite web|url=http://www.bie-paris.org/site/en/1990-osaka|title = Expo 1990 Osaka}} and the International Association of Horticultural Producers.