Come and Speak Out for a
Restored, Natural Arroyo and LA River System

Do you think Hahamongna should be treated like a river or a permanent maintenance area for the County Flood Control District?

Come learn more about the Upper Los Angeles River planning effort! This workshop will include interactive exhibits and several exercises where you can share your ideas. Tell the planners what you want to see along the River and Tributaries, the things you would like to do, and how the River and the Arroyo can continue to be invaluable community assets.

This is a unique opportunity for you to have a say about the future of the upper LA River and its tributaries, including the Arroyo Seco.

Upper Los Angeles River and Tributaries Community Event

Thursday, April 4, 2019 at 6 PM - 8 PM

Kidspace Children's Museum

480 N. Arroyo Blvd, Pasadena

River and Tributaries Factsheet

A River Not a Maintenance Yard

Spectacular Spring Sale at Hahamongna Nursery!

The sages, shrubs, grasses and trees are exploding with life and color at Hahamongna Native Plant Nursery in the Arroyo Seco. We have more than 100 native species to enrich your home or business. Come by and witness the botanical glories of our region and add a bit of nature to your home.

Sunday, April 7th, 10 am - 2 pm
Hahamongna Native Plant Nursery
4550 Oak Grove Drive (@ Foothill)
Pasadena 91103
(626) 657-0392

Arroyo Seco Quarterly Meeting

Join Us for the Arroyo Seco Quarterly Meeting
Wednesday, April 10, 2019, 6:30 pm
Pasadena Central Library
285 E. Walnut Street, Pasadena

Updates On:

  • The Big Dig
  • The Fight for Clean Air
  • Berkshire Creek Restoration
  • . . . and much more!

Come and share with people who care.


Arroyo Seco Foundation
(323) 405-7326
PO Box 91622
Pasadena, CA 91109-1622

Hahamongna Native Plant Nursery
4550 Oak Grove Drive
Pasadena, CA 91103
(626) 657-0392
Open: Sat & Sun 9am - 1pm