Urban Arboreta Shares Knight Cities Challenge Experience at PennPraxis Panel

On September 20th, 2016, the Urban Arboreta team, represented by Deenah Loeb, had the opportunity to participate in a panel of other Philadelphia Knight Cities Challenge winners hosted by PennPraxis. The panel ...


The jury of Tom Dalfo of the Philadelphia Industrial Development Corporation (PIDC), Professor Sean Burkholder of University of Buffalo, Professor Karen M’Closkey of University of Pennsylvania, Professor Anne Spirn of ...

Welcome to Urban Arboreta

Hello and welcome to Urban Arboreta: Transforming Ground, a 2015 Knight Cities Challenge winning project in Philadelphia. Urban Arboreta is dedicated to transforming vacant lots into hybrid spaces for nursery production and neighborhood use, ...

Request for Qualifications

We're looking for a qualified grower to join our team! In the coming weeks, we will be announcing an RFQ (Request for Qualifications) inviting growers and nursery professionals to submit qualifications ...

Greening the Void

The Knight Cities Challenge asks: What’s your best idea to make cities more successful? For team member Matt Langan, the prompt was different from that posed by the 2005 Urban ...

Urban Arboreta: Transforming Ground will turn vacant lots into hybrid spaces for nursery production and neighborhood use, improving the ecological, social, and economic health of Philadelphia’s neighborhoods.

Our Vision

To launch a self-sustaining and environmentally sound business model for nursery production and community open space on Philadelphia’s vacant land. The re-purposed spaces will have a strong community focus, offering educational programs and opportunities for professional job training in the nursery trade.


We have a great team of landscape architects, designers, educators, and community organizations, and are partnering with a wide range of city and community organizations in Philadelphia. The project is co-led by Deenah Loeb and Timothy Baird.

Our Partners

Want to get more involved with Urban Arboreta? We'll be looking for volunteers soon, so please get in touch with us!

Recent Posts

Instagram Feed

Contact us