Directions to the Hahamongna Native Plant Nursery

The Nursery is located in Hahamongna Watershed Park at 4550 Oak Groove Drive, Pasadena, CA 91103. Contact the Arroyo Seco Foundation: (323) 405-7326 or at

To Get to Hahamongna Watershed Park

Click on the Directions link to find directions to the park.

Directions to the Nursery Within Hahamongna Watershed Park

Picture Directions

At the entrance at the Hahamongna Watershed Park sign, proceed into the park and follow the road to the right.

Direction Step 1

Make a left at the intersection to go down the embankment to the lower level of Hahamongna Watershed Park.

Direction Step 2

At the bottom of the slope, make another left and proceed along the road near the slope proceeding north (towards JPL and the mountains) for two hundred yards.

Direction Step 3

At the next intersection make a right down the road towards the Tom Sawyer Camp entrance. (follow the MACH 1 signs)

Direction Step 4

Turn left near the Tom Sawyer Camp entrance and pass through the first gate and then take a quick right at the MACH 1 sign and forward to Hahamongna Native Plant Nursery. There will find two utility buildings and the nursery facilities. You have arrived at the nursery site!

Direction Step 6