Arroyo Seco Foundation

Let's Restore Nature in the Lower Arroyo

Do you weed your garden? Of course you do, if you love it. Natural areas like the Lower Arroyo need that kind of care too. It's even more important to protect the rich and rare habitat and wildlife that are there.

Pasadena staff has prepared a habitat restoration plan for the Lower Arroyo, but some neighbors are resisting it out of concerns for "openness" and for exotic species that don't nuture the ecosystem in Pasadena's only nature preserve.

We hope you will take a look at the plan and join us in supporting it to help restore and enhance nature in the Arroyo.

Pasadena Now   Restoration Plan

Why Natives?   Visit the Lower Arroyo

A Living Stream
or More Denuded Pits in Hahamongna?

The Arroyo Seco Canyon Project will reshape the Hahamongna area at the mouth of the Arroyo as it comes out of the mountains. The public comment period for Pasadena Water & Power's (PWP) Draft Environmental Impact Report has now closed, and PWP has a lot of questions to answer. Some of the comments were quite revealing. Take a look:

We are particularly concerned that PWP has rejected out-of-hand the most environmentally appropriate alternative, which consists of using the natural stream to percolate water into the groundwater basin beneath Hahamongna. Hahamongna, after all, is a spreading basin.

Can We Bring Native Fish Back to the Arroyo and the LA River?

One hundred years after the dedication of Devil's Gate Dam there may be hope that we can bring some of the trout and native fish back to the river. The Los Angeles River Fish Passage and Habitat Structures Design (LARFPHSD) project, currently underway, is exploring how to design stream improvements that will provide good habitat and conditions for steelhead trout and other native fish in a 4.8-mile stretch of the LA River near downtown LA.

Bringing Back Native Fish

Hahamongna Nursery Is Happening!

Fall is the best time to transform your yard and garden by planting native plants. So plan now and plant when it cools off a bit.

The acorns are beginning to fall, so we're gearing up for a big season, emphasizing the stately Engelmann Oak and scores of other truly local plants at Hahamongna Native Plant Nursery.

Come by and visit us to enjoy more than one hundred spectacular species of native plants from the Arroyo Seco.

Berkshire Creek Is Open

The Berkshire Creek project was completed just as the health restrictions took effect, so not many people have had the opportunity to take a look at the project that is being hailed as the model for future Arroyo Seco projects.

It's open to the public now, so come by and see it sometime. It's a sign of good things in store for Hahamongna and the Arroyo Seco.

Berkshire is in the southwest corner of Hahamongna Watershed Park. And please be sure to observe social distancing precautions.

All About Berkshire Creek

Mailing Address:
PO Box 91622
Pasadena, CA 91109-1622
(323) 405-7326

Hahamongna Watershed Park
4550 Oak Grove Dr. (at Foothill Blvd.)
Pasadena, CA 91103
Phone: (626) 657-0392