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Eastern tiger swallowtail (Papilio glaucus) on sticky rosinweed (Silphium glutinosum).
  • WordPress Website Development
  • Hosting and Maintenance
  • Content and Blog Creation
  • Search Engine Optimization

WordPress Development

Complete Responsive WordPress Websites.

Content and Blog Creation

Content for Websites and help with Blog Writing.

Hosting and Maintenance

cPanel Hosting and Maintenance of Websites.

Search Engine Optimization

Search Engine Optimization for Websites in Science.

Conservation Markets We Serve


  • Botanical Societies
  • Watershed Associations
  • Land Conservancies
  • Land Trusts


  • Native Plant Nurseries
  • Botanical Gardens
  • Bird Watching Groups
  • EcoTourism


  • Municipalities
  • Environmental Commissions
  • Conservation Initiatives
  • Information Websites

We Are Proud to Partner With

Scientiam Associates Logo without background.
Logo for JTS Design.
Aqua Community Relations Group logo on white background.
Silphium Design LLC flower flavicon.

Robert is both knowledgeable and passionate about the work he does making websites user-friendly for those with disabilities. There are simple, yet key, changes you can make to your website that helps others.

Kim R.

Silphium Design LLC flower flavicon.

Robert is very knowledgeable in web design and always takes the time to answer all my questions.

Jacob H.

Silphium Design LLC flower flavicon.

Extremely knowledgeable in Web Design, very friendly & helpful.

Colin B.

Robert Coxe with white background.

Bridging the gap between environmental needs and technology

Robert Coxe, Founder and Owner of Silphium Design, studied plant taxonomy and ecology in college and is a former State Ecologist for the State of Delaware. Read more about Robert here.

The owner of this website has made a commitment to accessibility and inclusion, please report any problems that you encounter using the contact form on this website. This site uses the WP ADA Compliance Check plugin to enhance accessibility.