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The International Association of Horticultural Producers (AIPH) members consist of thousands of growers of flowers and ornamental plants around the world who are together united by one essential goal – promoting the place of plants in people’s lives.
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AIPH is responsible for approving the world’s most exceptional horticultural expos creating long lasting green legacies in cities across the globe.
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AIPH Blooming Economies & Cities to Inspire the World

AIPH Blooming Economies & Cities to Inspire The World 2.0. Up-to-date statistics from recent Expos hosted in Asia and Europe.
Learn moreAIPH hosts several conferences, webinars and events such as the International Grower of the Year award throughout the year. Read about these along with the latest news about the association’s activities.
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AIPH International Grower of the Year

The AIPH International Grower of the Year Awards celebrate the best of the best in ornamental horticulture
Learn moreAIPH’s key aim is to stimulate demand for ornamental trees, plants and flowers worldwide. We are committed to supporting growers in achieving this by protecting and promoting the interests of the industry.
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The AIPH’s Global Industry Intelligence Centre (GIIC) is an international hub for industry information and knowledge exchange.
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Country Profile - Thailand

The report contains insights on production and consumption of the floriculture industry in Thailand, imports and exports, and business opportunities
DownloadAIPH Green City activities promote the essential role of plants in creating vibrant urban areas in which people and businesses can thrive.
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The AIPH Green City initiative promotes the essential role of plants in creating vibrant and healthy urban environments. A key element of this initiative is the annual AIPH International Green City Conference, an event which unites key stakeholders with the aim of advancing the promotion and development of green cities around the world.
This year’s conference is entitled: ‘Urban greening for clean and healthy cities’ and will have a particular focus on the effective role of plants in reducing air pollution. The conference will feature prominent speakers from around the world who will share their knowledge and experience of policies and strategies of effective urban greening giving some specific examples of major projects undertaken in China.
10.30: Keynote Speech: Forest Vegetation’s Role in Reducing PM2.5 Emissions, Prof Yu Xinxiao, Beijing Forestry University.
11.15: Vertical Forests: Design and Installation Insights to Maximise Benefits to Urban Environments, Mr Yibo Xu, Senior Architect with Stefano Boeri studios.”
11.45: Q&A
12.00: Lunch
13.30: Facts and Applications: A Technical Overview and Examples of the Contribution of Urban Greening to Clean, Healthy Cities, Dr Audrey Gerber, Technical Advisor to AIPH.
13.50: What is the Role for Trees and Vegetation in Reducing Air Pollution? Prof Paul S. Monks, University of Leicester.
14.20: Ecological Function as Priority – Strategy for the Second Round of A-million-acre Afforestation, Mr Gao Dawei, Deputy Director General of Beijing Gardening and Greening Bureau.
14.50: Q&A
15.00: Break
15.30: High-Quality Green Development in Yanqing Advances Ecological and Environmental Protection, Ms Chen Guifen, Deputy Mayor of Yanqing District Government.
15.55: Blossom with the Chinese Dream on the Ecological Island – Striving to Create a Beautiful Legend of Chongming’s Ecological Civilization Development in the New Era, Mr Li Zheng, Deputy Secretary of the CPC Chongming District Committee, Mayor of Chongming District People’s Government, Shanghai, China.
16.15: Landscape Design to Improve the Quality of Living in the Cities and the Surrounding Countryside, Ms Judith van der Poel, Landscape Architect with Niek Roozen bv.
16.45: Q&A
17.00: Close
Xinxiao Yu is a distinguished professor of Beijing Forestry University. He has served as the director of the Key Laboratory of State Forestry Administration on Soil and Water Conservation, the dean of the School of Soil and Water Conservation of Beijing Forestry University, and the director of the Key Open Laboratory of Soil and Water Conservation of National Forestry and Grassland Administration. He has long been engaged in shelterbelt, ecological hydrology and other fields of teaching and research. To date, he has presided over and participated in more than 30 scientific research projects, published 38 textbooks and monographs, published more than 400 papers, formulated 21 standards and obtained 28 authorised patents. He has won three second-prize State Preeminent Science and Technology Awards, one second-prize National Technology Invention Award, and more than 10 prizes of provincial-level Science and Technology Progress.
In recent years, Xinxiao Yu hosted major scientific research projects including: “Forest control function of PM2.5 and other particles and its technical research”. This research has revealed the forest control function of PM2.5 particles and its mechanism, put forward the optimal forest allocation technology for efficiently detaining dust, and provided and demonstrated the technical system of urban forest controlling of PM2.5 and other particles.
Li Zheng is an engineer and senior economist. He is currently Deputy Secretary of the CPC Chongming District Committee and Mayor of Chongming District People’s Government, Shanghai, China. Since becoming Mayor in May 2017, he has adhered to the concepts of ecology, high-quality and internationalism to promote the construction of the world-class Ecological Island. He has vigorously implemented the rural vitalisation strategy, won the bid for the 10th China Flower Expo in 2021 and now is fully preparing for the event. He also comprehensively carries out ecological environment management, ecological industry development, ecological township construction, ecological system innovation, and brings ecological benefit to the people. Striving to be the pioneer of Shanghai’s ecological civilization and green development, he spares no efforts to build the benchmark and model of ecological conservation of the Yangtze River Delta city cluster and the Yangtze River Economic Belt, providing the “Chongming case” for “lucid waters and lush mountains are invaluable assets.”
Gao Dawei is the Deputy Director General of the Beijing Gardening and Greening Bureau, responsible for planning and administration, developing strategy research of gardening and greening, and the administration of parks in Beijing. He is also in charge of projects relating to the ecology, culture, history and promotion of Beijing.
Chen Guifen is the Deputy Mayor of Yanqing District Government, Deputy Chief of Yanqing District Leading Group for Building Practice and Innovation Base of “Clear Waters and Lush Mountains are Invaluable Assets”, and Deputy Director of Yanqing District Ecological Advancement Committee of Beijing Municipality. She is responsible for ecological and environmental protection and construction in the Yanqing district.
As a practitioner of building the “Clear Waters and Lush Mountains are Invaluable Assets” practice and innovation base, as well as the National Forest City, Ms Chen is committed to ensuring that ecological advancement in the Yanqing District will go beyond mere governance and prevention. This committed effort will combine the creation of the National Forest City with the promotion of high-quality green development in Yanqing. Through pursuing green development, laying solid ecological foundations and fostering an atmosphere in which people conserve resources and protect the environment, the ecological value of the ‘lucid waters and lush mountains’ of Yanqing will be transformed into invaluable assets.
Audrey Gerber is Technical Advisor to AIPH. Dr Gerber is a horticultural scientist with experience in understanding how designed urban landscapes shape our cities and impact our well-being. Her advisory role for AIPH further develops the AIPH Green City initiative that aims to change, on a global scale, how green infrastructure is perceived and bring more ‘living green’ into urban environments. Having previously managed the Centre for Designed Ecology for the Department of Landscape at the University of Sheffield, UK, Dr Gerber has a keen interest in the latest research findings and in reporting on their relevance and transferability to practice. In her current role she also supports the AIPH Ornamentals Production Committee to keep the industry informed and respond to issues relating to plant health, novelty protection, sustainability and environment.
Paul Monks is a Professor in Atmospheric Chemistry and Earth Observation Science at the University of Leicester and currently Pro-Vice Chancellor and Head of College Science and Engineering. His research experience covers the broad areas of air quality, atmospheric composition and climate change. Paul is the chair of the Defra Air Quality expert group that provides independent science advice on air quality and is as a member of the Defra Science Advisory Council. He is the European representative on the Environmental Pollution and Atmospheric Chemistry Scientific Steering Committee (EPAC SSC) of the World Meteorological Organisation and ICACGP (International Commission on Atmospheric Chemistry and Global Pollution). Furthermore, he sits on the Satellite Applications Catapult advisory group, the Royal Society Global Environmental Research Committee and NERC audit committee. He has recently finished a term as co-chair of the IGBP – International Global Atmospheric Chemistry program and NERC council.
Yibo Xu is the practitioner of Vertical Forest and Forest City in China, a National First Class Registered Architect, partner and principal architect at Stefano Boeri Architetti(SBA) and guest lecturer of China Academy of Art.
Dr Yibo Xu worked in Cino Zucchi Architetti (CZA) in Milan and the Office for Metropolitan Architecture (OMA) in Rotterdam. Since 2010, Dr Yibo Xu has been working on projects of Vertical Forests in SBA.
Dr Xu has taught graduate students at Architecture School of Polimi. He has published many theses on city renovation and green buildings and his work has been published in international journals. He has translated several Italian academic publications including the monograph written by Stefano Boeri ‘A Vertical Forest’. He has been invited to many renowned domestic and international exhibitions and events including Venice Biennale of Architecture, Beijing Design Week, 2015 Shanghai Urban Space Season, Shanghai Project 2016 Plan and 2017 SUSAS.
As the Chinese partner and chief architect of SBA China, Dr Xu leads major projects including Nanjing Vertical Forest, Guizhou Mountain Hotel, Lishui Forest City Master Plan, Pudong Airport Jungle, renovation of Shanghai Stock Exchange, Shanghai Hecheng renovation, Huanggang Vertical Forest City Complex and Shanghai Vertical Forest Tea Hotel.
Judith van der Poel is a landscape architect with a passion for working in different countries and cultures. After studying, she travelled for a year through Australia where she developed an interest for cultural landscapes.
For the past fifteen years, Judith van der Poel has worked for the design office Niek Roozen BV. During this period she has been involved with many interesting international projects and also finished her masters degree. Some of her large scale projects have been in Holland, Greece, Scotland and Spain. Her graduation project focussed on a new green structure for a Chinese city, based on existing cultural landscapes.
Most of Judith van der Poel’s international projects are in China, where the ‘Sponge City’ is an important project theme for facing challenges such as flooding and water shortages. Dense populations, the need for green space, the urban heat island effect and air quality are also major issues raising the importance of countryside parks, water management and wetlands and forests around cities. The Chinese and Dutch governments are promoting the countryside for these reasons and Ms van der Poel is working on projects where the city, the countryside and nature all benefit.
Keynote Speech: Forest Vegetation’s Role in Reducing PM2.5 Emissions
Prof Yu Xinxiao, Beijing Forestry University.
Vertical Forests: Design and Installation Insights to Maximise Benefits to Urban Environments
Dr Xu Yibo Partner and Principle Architect with Stefano Boeri studios.
Dr Audrey Gerber, Technical Advisor to AIPH.
What is the Role for Trees and Vegetation in Reducing Air Pollution?
Prof Paul S. Monks, University of Leicester.
Ecological Function as Priority – Strategy for the Second Round of A-million-acre Afforestation
Mr Gao Dawei, Deputy Director General of Beijing Gardening and Greening Bureau.
High-Quality Green Development in Yanqing Advances Ecological and Environmental Protection
Mr Yu Bo, Mayor of Yanqing District People’s Government of Beijing Municipality
Mr Li Zheng, Deputy Secretary of the CPC Chongming District Committee, Mayor of Chongming District People’s Government, Shanghai, China.
