International Association of Horticultural Producers

International Association of Horticultural Producers
Association Internationale des Producteurs de l'Horticulture

Formation	1948 (1948)
Type	Trade association
Headquarters	Oxfordshire, United Kingdom
Members	34 members
President	Leonardo Capitanio
Vice president	Holly Peng
Secretary general	Tim Briercliffe
Website	www.aiph.org

The International Association of Horticultural Producers (French: Association Internationale des Producteurs de l'Horticulture; AIPH) is an international trade association dedicated to supporting horticultural producers and promoting the industry globally. It is the primary body responsible for approving and overseeing international horticultural exhibitions.

The AIPH was founded in 1948 in Zurich, Switzerland. It was established by representatives from Western European grower associations who sought to mend international relations and rebuild the horticultural community following the devastation of the World War II. Since its inception, the organization has evolved from a regional initiative into a prominent international body.¹

The association’s core mission is to reignite and uphold a global appreciation for plants, which it defines as a fundamental human instinct. AIPH operates under the belief that modern urbanization and technology have detached humanity from the natural world, leading to unnatural lives. To counteract this, the organization strives to achieve a "healthy and stable equilibrium" between: Humanity, Technology, Nature.¹

AIPH holds the international mandate for approving and regulating major horticultural exhibitions, a responsibility governed by an international convention to ensure the highest global standards. Since 1960, in partnership with the Bureau International des Expositions (BIE), AIPH has overseen and supported over 50 World Horticultural Expos. These events serve as world-class spectacles that attract millions of visitors, providing a global platform to showcase horticultural products to the public, businesses, and governments. Beyond their scale as major attractions, a primary objective of these sanctioned expos is to create green legacies, ensuring that host cities benefit from permanent urban parklands and environmental improvements that sustain the community long after the events have concluded.²

AIPH recognises four different categories of horticultural exposition, with the following table summarising the main differences between each of them.³

The following is a list of International Horticultural Expos classified as Category A1 by the AIPH.⁴

Year	Location	Dates	Area (ha)	Visitors	Participants	Theme
1960	Rotterdam, Netherlands	25 March – 25 September 1960	50	4,000,000	N/A	International Horticulture
1963	Hamburg, West Germany	26 April – 13 October 1963	76	5,400,000	35	Horticulture of all Categories from the Point of View of Economics and Culture
1964	Vienna, Austria	16 April – 11 October 1964	100	2,100,000	28	International Horticulture
1969	Paris, France	23 April – 5 October 1969	28	2,400,000	17	Flowers of France and Flowers of the World
1972	Amsterdam, Netherlands	26 March – 1 October 1972	75	4,300,000	N/A	Efforts accomplished by International Horticulture
1973	Hamburg, West Germany	27 April – 7 October 1973	76	5,800,000	50	International Horticulture
1974	Vienna, Austria	18 April – 14 October 1974	100	2,600,000	30	International Horticulture
1980	Montreal, Canada	17 May – 1 September 1980	40	N/A	23	Relationship between man's socio-cultural activities and his physical environment
1982	Amsterdam, Netherlands	8 April – 10 October 1982	50	4,600,000	17	International Horticulture
1983	Munich, West Germany	28 April – 9 October 1983	72	11,600,000	23	International Horticulture
1984	Liverpool, United Kingdom	2 May – 14 October 1984	95	3,380,000	29	The progress accomplished by International and National Horticulture
1990	Osaka, Japan	1 April – 30 September 1990	140	23,126,934	83	The Harmonious Coexistence of Nature and Mankind
1992	Zoetermeer, Netherlands	10 April – 12 October 1992	68	3,355,600	23	Horticulture is being involved in a continuous process of renewal
1993	Stuttgart, Germany	23 April – 17 October 1993	64	7,311,000	40	City and Nature – Responsible Approach
1999	Kunming, China	1 May – 31 October 1999	218	9,427,000	70	Man and Nature – Marching into the 21st century
2002	Haarlemmermeer, Netherlands	25 April – 20 October 2002	140	2,071,000	30	The contribution of the Netherlands horticulture and international horticulture
2003	Rostock, Germany	25 April – 12 October 2003	100	2,600,000	32	A Seaside Park. A new flowered world
2006	Chiang Mai, Thailand	1 November 2006 – 31 January 2007	80	3,848,791	32	To Express the Love for Humanity
2012	Venlo, Netherlands	5 April – 7 October 2012	66	2,046,684	38	Be part of the theatre in nature; get closer to the quality of life
2016	Antalya, Turkey	23 April – 30 October 2016	112	4,693,571	54	Flowers and Children
2019	Beijing, China	29 April – 7 October 2019	503	9,340,000	110	Live Green, Live Better
2022	Almere, Netherlands	14 April – 9 October 2022	60	685,189	32	Growing Green Cities
2023	Doha, Qatar	2 October 2023 – 28 March 2024	80	N/A	N/A	Green Desert, Better Environment
2027	Yokohama, Japan	19 March – 26 September 2027	80			Scenery of the Future for Happiness
2029	Nakhon Ratchasima, Thailand	10 November 2029 – 28 February 2030	109			Nature and Greenery: Envisioning the Green Future
2031	Minnesota, United States	1 May – 15 October 2031	90.6			Human/Nature: Where Humanity and Horticulture Meet

The following is a list of International Green Expos classified as Category B by the AIPH.⁴

Year	Location	Dates	Area (ha)	Visitors	Participants	Theme
2004	Hamamatsu, Japan	8 April – 11 October 2004	56	5,440,000	N/A	Flowers, Greenery, Water: Creating New Style of Living
2006	Shenyang, China	1 May – 31 October 2006	246	3,500,000	25	Man and nature, we live harmoniously
2010	Taipei, Taiwan	6 November 2010 – 25 April 2011	91.8	8,900,000	30	River, Flower, New Horizon
2011	Xi'an, China	28 April – 22 October 2011	418	12,000,000	28	Nature and People in One in Chang’an, Nature Creativity
2011	Chiang Mai, Thailand	14 December 2011 – 14 March 2012	80	2,200,000	31	Greenitude: Reducing Global Warming to Save Planet Earth and to Improve the Quality of Life
2013	Suncheon, South Korea	20 April – 20 October 2013	111.2	2,000,000	23	Garden of the Earth
2014	Qingdao, China	25 April – 25 October 2014	241	12,600,000	37	From the Earth, for the Earth
2016	Tangshan, China	29 April – 16 October 2016	540	5,200,000	15	City and Nature, Phoenix Nirvana
2018	Taichung, Taiwan	3 November 2018 – 24 April 2019	60.88	7,240,000	26	Rediscover A Green, Nature and People
2021	Yangzhou, China	8 April – 8 October 2021	230	1,600,000	15	Green City, Healthy Life
2021	Hatay, Turkey	1 April – 20 June 2020	32	1,083,568	10	Garden of Civilisations
2023	Suncheon, South Korea	1 April – 31 October 2023	193	9,812,157	30	We Live In The Garden
2023	Kahramanmaraş, Turkey	23 April – 30 October 2023	78	2,000,000	22	Nature Friendly City and Sensitivity
2024	Chengdu, China	26 April – 28 October 2024	242	10,230,000	23	Park City, Beautiful Habitat
2026	Udon Thani, Thailand	1 November 2026 – 14 March 2027	165			Diversity of Life: Connecting People, Water, and Plants for Sustainable Living
2028	Ulsan, South Korea	22 April – 28 October 2028	124			Garden, the Cradle of the Earth
2029	Baghdad, Iraq	1 October 2029 – 1 April 2030	375			Green Light in Desert

AIPH is currently composed of representative grower organizations from 33 member states across the globe, prioritizing the professional interests of horticultural producers through a non-governmental framework that fosters international cooperation, technical exchange, and the official sanctioning of horticultural exhibitions.⁵