American Society of Landscape Architects

Founded in 1899, the American Society of Landscape Architects (ASLA) is the professional association for landscape architects in the United States, representing more than 15,000 members. The Society’s mission is to advance landscape architecture through advocacy, communication, education, and fellowship. Sustainability has been part of ASLA’s mission since its founding and is an overarching value that informs all of the Society’s programs and operations. ASLA has been a leader in demonstrating the benefits of green infrastructure and resilient development practices through the creation of its own green roof, co-development of the SITES® Rating System, and the creation of publicly-accessible sustainable design resources.

Our Vision

Leading the design and stewardship of land and communities.

Our Mission

Landscape architects lead the stewardship, planning, and design of our built and natural environments.

The Society’s mission is to advance landscape architecture through advocacy, communication, education, and fellowship.

Standards of Conduct

ASLA is committed to providing a safe, productive, and welcoming environment that fosters respect, fairness, and integrity for all who participate in the ASLA Annual Meeting and EXPO. ASLA members and guests should maintain the highest standards of personal conduct, refrain from engaging in discrimination or harassment, and abide by the meeting safety and responsibility policies.

Designing a More Sustainable Meeting

ASLA is devoted to reducing the carbon footprint of theAnnual Meeting and EXPO. All organizational partnersand service/product suppliers share in that commitment and document their sustainable practices. Annual meeting printed materials, signage, and decorations are recycled and/or recyclable, and meeting handouts are distributed electronically. The City of Philadelphia is one of the top ten U.S. Cities for Green Meetings. This distinction is due in great part to the LEED Gold certification for its 2011 expansion of the Pennsylvania Convention Center and its use of renewable energy, energy-efficient lighting, and other energy-savings initiatives. Even ASLA exhibitors give back to the community by donating items from their booths to help build a local project through a collaboration with the host chapter and the ACE Mentor Project. The ASLA/ACE Legacy Project started in Philadelphia in 2008.


The ASLA Fund is the 501(c)(3) charitable foundation of the American Society of Landscape Architects, supported by the tax-deductible contributions of ASLA members and other individuals and organizations, and committed to the careful stewardship and artful design of our cultural and natural environment. The Fund’s mission is to expand the body of knowledge of the landscape architecture profession and increase public understanding of environmental and land-use issues and principles. Its work supports public and professional education and outreach, professional and student awards programs, and special projects that provide real-world demonstrations of core values like the ASLA Green Roof and Chinatown Green Street.