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Nursery Sales Yard Closed on
Saturday January 3, 2026

Reopens Saturday January 10, 2026

Regular Hours:
Open 9 am till 2 pm on Saturdays

Open during the growing season,

September through May.

Visit Hahamongna Native Plant Nursery

and learn how to transform your yard
and garden into a native plant oasis.

2026 Native Plants Wall Calendar 
Available Now!


Donate $50 to Arroyo Seco Foundation and receive this beautiful calendar
as a token of our grattitude.

Features the Native California Plants 
that are found in the Arroyo Seco watershed.

Go to the Donate Page for Details.


What We Do

We propagate many native California plants

from cuttings and from seed,
and most of our plants are available
for purchase.  
 
Our volunteers work year-round
caring for our native plants and are on site
most days of the week.
The sales yard of our nursery is
open to the public only on Saturdays from September through May. 

The sales yard is closed each June, July, and August because our native plants
do not thrive when installed during these hot summer months.
 
Looking for a specific plant?
Please email us at:
Nursery@ArroyoSecoFoundation.org

We are located within the Hahamongna Watershed Park, in northwest Pasadena:
​
4550 Oak Grove Drive
Pasadena, California

Enter Hahamongna Watershed Park
and follow the directional signs.

​
                    

Rosa californica

Hahamongna Native Plant Nursery is dedicated to promoting pollinator and wildlife habitat growth one yard at a time. We grow and sell only California native plants, many of which are found and propagated right here in the Arroyo Seco watershed. 
 
For detailed information about the characteristics and growth habits of just about every native California plant, we recommend consulting the website of the California Native Plant Society. Click the link below for www.CalScape.org
 

email Nursery@ArroyoSecoFoundation.org

instagram @hahamongnanursery

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© 2026 Arroyo Seco Foundation.

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