Our Activities

Researching and developing landscaping technology

JLCA research activities are designed to benefit as many people and places as possible. As such, we endeavor to develop technology and skills not only for development and maintenance of city parks, but also for national parks, rivers, roadways and other areas.

Research themes include the following:

Technology for developing planting and cultivation bases

JLCA is cooperating with the Ministry of Land, Infrastructure and Transport(MILT)'s Public Works Research Institute to develop various types of planting and cultivation bases. Among the projects we run are those to improve planting bases and find better ways of promoting plant growth. We also support standardization of technology for planting and cultivation bases.

Methods for growing and protecting large roadside trees

JLCA is conducting research to unearth better ways of growing and protecting large trees. This effort recognizes that placing trees along our roadways is an essential part of the beautification process.

Approaches to creating floral areas in cities

JLCA is focusing to develop technology for planting and maintain flowers in public facilities and other places within cities.

Near-natural landscaping technique

JLCA is studying and evaluating biotope and ecological systems with regard to landscaping applications. Work is also being done on ways to improve treatment of our ecology.

Management and maintenance of parks and other green areas

With greater resources being devoted to parks and other green areas, efforts are underway to identify efficient management systems.

Green zero emission efforts in landscaping industry

-We design recycling systems to minimize waste from the landscape industry in an effort to develop and maintain a zero-emission environment.

-We draw up guidelines on the development of recycling systems for JLCA member companies.

Helping professional landscapers to improve their skills

Conducting training courses to raise the standing of landscapers in society

Conducting training courses to raise the standing of landscapers in society

Courses available include:

-Programs supporting preparation for the certification exam covering skills development in landscape construction supervision.(This course is for 1st grade examinees)

-Technical training for planting & cultivation bases

-Onsite studies to promote employment in the landscaping industry

-Training and certification as a landscape technician.

-Online programs for developing landscaping skills.


Also, JLCA certifies 4 qualifications below:

-Street Tree Pruners (街路樹剪定士)

-Green Space Tree Pruners (緑地樹木剪定士)

-Planting Base Diagnosticians (植栽基盤診断士)

-Registered Mainstay Landscape Technicians (登録造園基幹技能者)... Joint-managed with Japan Federation of Landscape Contractors (JFLC)


Participating in the administrationof parks and green areas

Promoting urban greenery

JLCA actively participates in a variety of events relating to flowers and greenery. These include tree-planting campaigns held in cities during spring and the month of October, the "Protection of Greenery" conference, and a national convention to promote tree planting in urban areas, maintenance of city parks, etc.

JLCA also encourages cities to develop more green areas by exhibiting flower beds and gardens in the Urban Green Fairs held nationwide.

Promoting international exchanges

JLCA became an AIPH member in August 1985 and has since played the active role in bringing following international horticultural exhibitions to Japan:

1990 The International Garden and Greenery Exposition, Osaka, Japan 1990 "Expo 90"

2000 International Flower and Greenery Exhibition "JAPAN FLORA 2000"

2004 Shizuoka International Garden and Horticulture Exhibition "PACIFIC FLORA 2004"

2027 International Horticultural Expo 2027, Yokohama, Japan "GREEN×EXPO 2027"

JLCA also provides technical support to international horticultural exhibitions held overseas.

Promoting cultural exchanges through the development of Japanese gardens overseas is another important activity.


Overseas Japanese Garden Restoration

JLCA carries out the restoration of Japanese gardens around the world, which are in dilapidated states with inadequate managements or incorrect directions, by dispatching of Japanese landscape architects to work and instruct for repair.

In 2017 to 2021, JLCA had taken a part of "Overseas Japanese Garden Restoration Project" which had been implemented by MILT and MOFA in Japanese Government, and disseminated the technology for Japanese Landscaping both domestically and abroad.

Promoting structural reform of the landscaping industry

Health, safety programs & project supervision, etc.

JLCA VISION is a concept that describes the ideal landscaping industry and promotes strategic programs.


In order to prevent worksite accidents, JLCA compiled "The Manual for Safety & Health Control in Landscaping." We look to improve safety management skills as well as promote and improve voluntary safeguard activities. Our current program focuses on improving the safety training of technicians still developing basic landscaping skills.