Hello, your question has bounced around our system a bit because we are on the east coast and not familiar with your landscape plants. I encourage you to contact your Placer County Master Gardener program to see if they can identify the plant. Here is their contact information.
UCCE Placer County Master Gardeners
11477 E Avenue
Auburn, CA 95603
Master Gardeners Office Hours:
9 a.m. - Noon on Tuesday, Wednesday and Thursday
Walk-ins are welcome.