Robinson Anderson Summers, Inc. Landscape Architects

Robinson Anderson Summers, Inc. Landscape Architects Providing Design Services for Distinctive Landscapes Providing Design Services for Distinctive Landscapes

Welcome to Robinson Anderson Summers, Inc.

Located in Wilmington, Delaware, our firm consists of six full-time landscape architects, design professionals, and support staff. We provide planning and design services through all phases of landscape architecture, and are nationally recognized for our work in public and private gardens, health care and educational facilities, historic landscapes and restorations, and urban parks and open spaces.

RAS is excited for the opening of the new Red Panda exhibit at the Maryland Zoo in Baltimore.Construction is well under ...
04/10/2026

RAS is excited for the opening of the new Red Panda exhibit at the Maryland Zoo in Baltimore.

Construction is well under way and is projected to be completed by June.

Happy Spring! As we welcome the 2026 spring season, we’re revisiting some of our past projects’ beautiful spring plantin...
03/24/2026

Happy Spring! As we welcome the 2026 spring season, we’re revisiting some of our past projects’ beautiful spring plantings for inspiration. 🌷💐.

A few pictures from our office outing last week to the new in Philadelphia. A special thanks to Erin Monda for the tour...
11/14/2025

A few pictures from our office outing last week to the new in Philadelphia. A special thanks to Erin Monda for the tour of the gardens designed by .

some fall color at our Merion Station project
11/12/2025

some fall color at our Merion Station project

Some fall color at our Lower Merion project
11/12/2025

Some fall color at our Lower Merion project

Principal Allan Summers and Associate Jen Pennington are thrilled to have attended the American Public Garden Annual 202...
06/19/2025

Principal Allan Summers and Associate Jen Pennington are thrilled to have attended the American Public Garden Annual 2025 Conference: Elemental! in Denver, CO. In addition to the many garden tours and lectures, it is rewarding to connect with friends and colleagues. Allan presented an overview of the Master Plan for the Pittsburgh Botanic Garden. Thanks to our gracious host Denver Botanic Gardens. The Gardens and Chatfield Farm were glorious and inspirational!

Checking in on our ongoing work at . Lots in bloom! 🌳🪻 ̇gn
06/09/2025

Checking in on our ongoing work at . Lots in bloom! 🌳🪻 ̇gn

At Caldwell Zoo, guests can enjoy an immersive experience: (1) navigate the Amazon River’s Edge among the birds and tape...
06/06/2025

At Caldwell Zoo, guests can enjoy an immersive experience: (1) navigate the Amazon River’s Edge among the birds and tapers surrounded by lush plantings (2) come up close to the glass and watch the giant river otters swim at in Tyler, Texas.

We’re honored to share that Robinson Anderson Summers has received a Merit Award in Analysis and Planning from ASLA Penn...
05/14/2025

We’re honored to share that Robinson Anderson Summers has received a Merit Award in Analysis and Planning from ASLA Pennsylvania-Delaware for our work on the Pittsburgh Botanic Garden Master Plan 2025.

This recognition celebrates the thoughtful planning, deep collaboration, and dedication behind a project that is helping shape the future of one of Pennsylvania’s most dynamic public gardens. The Master Plan serves as a guiding framework to grow the Garden’s mission, ecological stewardship, and community engagement for years to come.

A heartfelt thank you to the Pittsburgh Botanic Garden for your partnership, our team including Sarver Ecological and emdConsulting, and to ASLA Pennsylvania-Delaware for this recognition. We’re proud to stand alongside a community committed to excellence in landscape architecture.

We look forward to continuing the journey of designing resilient, inspiring, and nature-connected spaces.








Visitors can get up close to the viewing glass and see the giant river otters swimming underwater. RAS was thrilled to b...
03/07/2025

Visitors can get up close to the viewing glass and see the giant river otters swimming underwater. RAS was thrilled to be on the design team for this exhibit, part of the new Amazon River’s Edge habitats at in Tyler, Texas.

Despite this challenging winter great progress is being made on the new Rose Garden at ! The new design responds to the...
02/14/2025

Despite this challenging winter great progress is being made on the new Rose Garden at ! The new design responds to the character and scale of the historic garden while incorporating modern amenities necessary for its current use as a public garden. Can’t wait for the spring planting. Scroll to see what the final space will look like!

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Happy Holidays from the RAS team,thank you for allowing us to create memorable places with you! Photo of the Main Axis ...
01/02/2025

Happy Holidays from the RAS team,
thank you for allowing us to create memorable places with you!

Photo of the Main Axis Garden at Greenwood Gardens

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Wilmington, DE

Telephone

+13028881544

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