Basic Policy

The use of as many plants as possible which are native to the region in urban development is a growing trend as society shifts toward a goal to co-exist with nature.

In the midst of these trends, Sumitomo Forestry Landscaping Co., Ltd. has defined guidelines Harmonic Plants® for selecting plants species based on greening areas with the concepts that using indigenous and local species in greening plans is in the best interest of natural revitalization. The Company has been promoting this model up until now.

There are plants that have grown in Japan since long ago (native plants) and plants that have come to Japan from abroad (migration plants) for trees. Among these migration plants, there are species that will overrun areas where native plants live due to their characteristics, which endanger the biodiversity of the region (invasive plants*). Some of these plants are cultivated plants classified as garden vegetation (agrotype).

Garden vegetation plans are separated into four areas that take into account the conservation level (protected areas, conservation areas, satoyama areas, urban areas) to select plant species based on these areas. For example, in urban areas when building gardens for residences, the colorfulness is represented by selecting a balance of greening plants from non-invasive migration plants around a main selection of native plants, including agrotype plants. In addition, the Group has in place a policy of not using invasive plants that clearly have an adverse impact on local ecosystems and a division responsible for coordinating technology at Sumitomo Forestry Landscaping Co., Ltd. checks that such species are not used.

* Specified alien species and alien species requiring caution as stipulated by the Invasive Alien Species Act

Contributions to Property Development

Forest Garden Hadano Receives the First ABINC Certification As a Detached Housing Complex.

Forest Garden Hadano, a detached housing complex in Hadano City, Kanagawa Prefecture, received the first ABINC (Association for Business Innovation in harmony with Nature and Community) certification under the detached housing complex and city area category in March 2018. The ABINC certification system certifies results of biodiversity preservation activities of companies to promote coexistence of nature and people. The certification began the certification of office buildings and commercial facilities from 2014 and has expanded its scope to include housing complexes and factories.

Furthermore, detached housing complex and city area category and city area category and logistic facilities were newly added in fiscal 2017. Forest Garden Hadano received the first certification for the detached housing complex and city area category for its innovative initiatives.

The property design of Forest Garden Hadano is green property that coexists with life. It realizes rich greenery through the use of local tree species and Harmonic Plants®. Consideration toward sustainable circulation of water utilizing spring water was one of the major factors of receiving the certification.

Sumitomo Forestry Landscaping work together with the residents through holding study sessions, monitoring, and regularly supporting maintenance of garden vegetation to continue creating rich residential environment and support improvement of asset value.

Forest Garden Hadano

Forest Garden Hadano

Biodiversity Greening and ABINC Certification Support Business

We supported Aioi District (Hyogo Prefecture) of the IHI Corporation in obtaining the ABINC certification.

In fiscal 2018, the Branch conducted a landslide disaster prevention construction to reinforce the slopes with consideration of reusing resources such as fallen trees that had been blown down by winds in Hyogo Prefecture as well as timber and pruned branches produced by tree thinning and pruning as well as planting local tree species.

Planting trees with “Tree Shelter” protective structure to increase the rate of seedlings taking root

Planting trees with “Tree Shelter” protective structure to increase the rate of seedlings taking root

Participating in Gardening Exhibit at the 35th National Urban Greening Fair

From September through November 2018, the 35th National Urban Greening Fair “Yumehana Yamaguchi” was held at Yamaguchi Kirara Expo Memorial Park (sponsored by Yamaguchi Prefecture, Yamaguchi City, and Organization for Landscape and Urban Green Infrastructure, and advocated by the Ministry of Land, Infrastructure, Transport and Tourism).

The national urban greening fair is a flower and greenery fair that has been held every year since 1983 in different locations nationwide to promote the comfortable and prosperous living that greening provides.

At this fair, we exhibited a model garden rich in wood textures in collaboration with the Yamaguchi Branch of Housing and Construction Division of Sumitomo Forestry. Garden vegetation centered on native plants of Yamaguchi including Japanese sapphireberry, viburnum japonicum, elaeocarpus japonicus and Nippon daisies for a design that considered of the local environment.

The garden won the Gold Medal, as well as the Special Prize presented by the Japan Landscape Contractors Association. It enabled us to communicate nationwide a comforting new garden design from Yamaguchi.

The garden  that won the Gold Prize

The garden that won the Gold Prize

Education for Biodiversity Conservation

Publish of Biodiversity Handbook Vol. 2: Local Vegetation

We are receiving a wide range of concerns for information about what the local vegetation is to the production, distribution and consumption of native plants and the cultivation plans for native plants in addition to future trend of local vegetation required for greening that consider biodiversity.

Sumitomo Forestry Landscaping has responded to these concerns by publishing the Biodiversity Handbook Vol. 2: Local Vegetation in January 2018.

This handbook offers explanations while interweaving cutting-edge examples that use locally cultivated plants to address primarily the information below.

  1. Reconstruction projects for the Great East Japan Earthquake using local plants
  2. The development of large-scale test driving course using local plants in
  3. Beach plant revitalization project using local plants
  4. Urban redevelopment using local plants from the Edo period
  5. Mixed tree revitalization using local plants cultivate on large-scale artificial grounds

We believe these initiatives will help as one measure for use of local plants toward future revitalization.

Cover of the Biodiversity Handbook Vol. 2: Local Vegetation

Cover of the Biodiversity Handbook Vol. 2: Local Vegetation

Publish of an Illustrated Guide to Home Trees Revised Edition

The Ministry of the Environment and The Ministry of Agriculture, Forestry and Fisheries of Japan newly released a list of alien species which harm biodiversity of Japan (list of potentially harmful alien species for biodiversity) for the purpose of deepening interest and understanding about alien species to incite the appropriate action by various independent entities.

This list not only stipulates the specified alien species up until now but also selects alien species which have the potential to become highly invasive to the ecosystem or kill or harm people as well as damage agriculture, forestry and fisheries.

Sumitomo Forestry Landscaping has reorganized criteria for alien species unique to its business in accordance with the regulations on the list of harmful alien species for biodiversity with considerations to further impact on the ecosystem. The Illustrated Guide to Home Trees published based upon this criteria has released a revised edition in March 2017 which replaces some of the tree species included therein.

We will continue to advocate Harmonic Plants® and the use of these standards for alien species to include in proposals for plants to customers as well as in raising the awareness of our employees.

Cover of An Illustrated Guide to Home Trees Revised Edition

Cover of “An Illustrated Guide to Home Trees Revised Edition”

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Overseas Greening Businesses

In North Melbourne, Australia, we are leveraging our expertise in a design partnership with Tract Landscape, a local landscape design firm, for the Annadale estate project (1,087 total lots for sale), which is a joint residential development project between Sumitomo Forestry and NTT Urban Development.

In this design partnership that began in January 2017, Sumitomo Forestry proposed a concept, Growing Wellness Life & The Five Sense, for the basic design of Tract. Tract highly evaluated this proposal as a fantastic reference because a story is not usually incorporated into standard design plans in Australia and playground equipment using natural stone and logs was employed to better the motor skills of the children as well as the vegetation plans. Even in the second stage of park planning conducted thereafter, we proposed basic concepts to further tasks to bring together the basic design founded upon this idea.

Green zones in Australia and the U.S. is imperative to raise the value of the estate development and pursue the creation of efficiently green open spaces. We have just begun our efforts in the overseas greening business, but will continue to further these businesses in the future with the aim of creating beautiful and comfortable spaces loved by residents overseas.

Nature Play Equipment Using Natural Stone

Nature Play Equipment Using Natural Stone

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Sustainability Report