Potrero Gateway Project Schedule as of March 29, 2024

The SF Public Works contract with Bauman Inc was scheduled to end March 30, but due to rain, street light replacement issues, the project it tasking longer.

The latest schedule, which is APPROXIMATE was emailed to me by Alex Murillo, DPW.

I spoke to the irrigation subcontractor on site March 28 who told me he was checking out the plans.


Open Garden this Saturday
June 17 from 2pm to 4pm
400 BLock vermotn Street


Join the Eco-Patch team and see how the CA Native Plants are dong these last dry months. They has a good watering in the winter. Come see how they are doing. What will we have for you to do?

  • If you download iNaturalist to your mobile phone, we’ll show you how to use it in the hillside.
  • We encourage you to look at the plants that have survived a drought and then a rainfall and we’ll tell you all about them.  Some will work well in  your backyard.
  • We will have some possibly home-made refreshments for you to share.
  • .We will provide paper bags for weeds that you are able to pull out  if you are so inclined.
  • Depending on who comes to help, we may have other tasks for you!
  • We have four rescued  Douglas Iris, that need a home
Rescued Douglas Iris that need a home

Eco-Patch Open Garden

Flyer for the November 19th event: FLYER

Sunday November 19th from 10am-12pm

IIdiko Polony, Executive Director of Sutro Stewards will be our featured speaker. Learn about Sutro Stewards work and their nursery, a source for Eco- Patch plants and about the Plants for Birds program. Come to see the autumn beauty and seed bounty of local native plants that have had minimal water.

We will be handing out one of the four recommended plants.

Checlk out the four recommended plants using the QR code below:

Eco-Patch Workday – January 9, 2022

Reduced in number by COVID caution, volunteer Eco-Patch members spend a beautiful Sunday morning carrying in mulch and weeding the patch. The December heavy rains were appreciated by the SF Native plants, responding by looking green and healthy. Of course the oxalis responded as well. The GBD mowed ssown some of the surrounding weeds. Adding a mulch pathway around the entiree patch will keep the weeds away as well as maing it easier for folks to walk around and see how the plants are doing. The photos below tell the story too.

Goodbye Pink Flags!

The Eco-Patch is growing! It’s time for the pink flags identifying the plant scientific name to be removed. The Admiral butterfly will not find much nutrition in the flags. Our advice to the butterfly is stick to the plants!
Check out the news from the field collective

Photos by Alex Harker

Eco-Patch Test Garden


Overall Project Vision

The Potrero Gateway Eco-Patch builds on the work done to establish 17th Street , San Bruno Avenue and Vermont Street as the Potrero Gateway . The Eco-Patch features native San Francisco plants with the intention of providing wildlife habitat and restoring biodiversity in San Francisco. This particular piece of land is situated above serpentine bedrock, which underlies portions of San Francisco (see map above).  The selection of plants that survive and thrive in serpentine conditions highlights the natural history of the site and creates habitat for wildlife, such as the Bay Checkerspot Butterfly, which have coevolved with those plants.

This project posits that the Eco-Patch can grow into a demonstration garden to serve as a resource for the greater community that showcases the ecological and aesthetic benefits of habitat restoration. By design, the Eco-Patch encourages imitation, as it seeks to show the positive impact that a network of habitat patches can have on biodiversity. Geographic isolation caused by habitat fragmentation is one of the leading causes of biodiversity loss and so a network of patches in close proximity helps remedy this.

In San Francisco there is already a precedent for habitat corridors composed of patches that create stepping stones for wildlife. In particular, the project is inspired by the success of the Green Hairstreak Butterfly Corridor led by Nature in the City. Currently, the habitat corridors needed to get rare and endangered wildlife that depend on serpentine adapted plants from their current locations to the Potrero Eco-Patch do not exist. However, if enough patches are planted, wildlife can access the Eco-Patch and beyond.


Test Patch

The first stage of the Eco-Patch is a 900 square foot test patch that includes a select number of plants from our proposed list. Monitoring of the test patch will determine the site suitability of specific plants and the success of different weed management strategies. Installation, maintenance, and monitoring of the test patch is a volunteer effort with funding for material costs from the Dogpatch & NW Potrero Green Benefit District.

The test patch is adjacent an existing Coast Live Oak that serves as a keystone species. Plant selection is based on the criteria of being native to San Francisco, and of having high habitat value. Additional considerations include being low-water use, wind tolerant, and adapted to or tolerant of serpentine soils. Eight combinations of plants will be tested to ensure dynamic seasonal changes and aesthetic harmony. Each combination of plants is then divided into three different management zones to test alternative management approaches to removing existing vegetation and weed removal. The knowledge and experience gained in the test patch, including cost, time and labor will inform the management approach for the full Eco-Patch project.


test patch and timeframe image

What’s happening now? How do I provide feedback? How can I get involved?

We want this project to be an asset to the neighborhood and so welcome your feedback!   As it is primarily a volunteer effort, we also welcome your participation. Please email pgploop@gmail.com if you are interested in volunteering or if you have feedback to share!

Wildlife monitoring will be done through the iNaturalist application.   The project is registered on iNaturalist (https://www.inaturalist.org/projects/potrero-eco-patch-monitoring-area). Recording observations on iNaturalist is an easy way for individuals to make meaningful contributions to this project.

Get on iNaturalist and start recording!

We want to document current conditions so that we have a baseline to compare with post-planting. In addition, knowing what butterflies, insects, and birds are already present can help inform the plant selections to fortify the habitat of those already in the area. Since the site itself is not accessible to the public, we are encouraging monitoring of wildlife within a quarter mile radius of the site.

Design work: Field Collective
Photographs: eddie@naturetrip.com 2020 & Terri McFarland Landscape Architecture (TMLA) 2020 (Stipa pulchra)

Potrero Eco-Patch Test Garden Project Partners:
Potrero Gateway Park Project
Dogpatch & Northwest Potrero Hill Green Benefit District
Field Collective
California Native Plant Society

Project Supporters:
San Francisco Public Works
San Francisco-Marin Food Bank
LYNGSØ Garden Materials

Upgrading the Bike Lane

The team’s goal is to widen 17th Street southside sidewalk to make room for two way pedestrian traffic, add a median to separate cars from bikes and insure that the turn areas used by bikes and cars are safe. The drawing below contains ideas proposed by the team.

Focus on the Rectangle

The MUNA Potrero gateway Park steerind committee decided to reduce the Limit of Work for the project to include only the rectangle defined by 17th Street – Mariposa Avenue-San Bruno Avenue -Vermont street.

The committee has funding for Phase 1 of the Project and is looging toward having a Design Scope of Work contract signed either by a private landscaep company or by SF Public Works.

The committee has been busy determining the priority elements of the Limit of Work.

(9/18/2019) A presentation was made explain this to the Dogpatch & NP Potrero Hill GBD in September :   GBD September Presentation

(10/21/2019) A presentation was made to explain this to the Eastern Neighborhoods CAC in October:  ENCAC October 2019 Presentation

(1/15/2020) A presentation was made to explain this to Shamann Walron in January.  Additionaly Supervisor Walton toured the area with the committee:  Walton 2020 Presentation

BioBlitz with phones

June 23, 2019 Steering Committee members, neighbors and Jennifer Cooper-Sabo, SF Public Works Landscape, spend a warm morning collecting photos of plants, bugs, birds and trees in order to identify what is currently living in the area of the proposed Potrero Gateway Park.  Using the mobile phone app, iNaturalist, we spread out over the Caltrans area and practiced Citizen Science as part of a biodiversity objective.

It was great to be out on a sunny day.  Below are photos and a link to the iNatrualist Website that lists our observations.

Check out the Observations on the iNaturalist Site