Redondo Beach has its Farmer's Market on Thursday mornings from 8am to 1pm, near Veteran's Park.
Usually several of the farmers have certified organic produce. Kettle Corn (a farmer's market favorite!) is available. There's at always at least one flower stall. One person has seedlings for sale at very good prices--I picked up some Chandler and Seaside strawberry plants today, and in the past, I have gotten some heirloom tomato plants and herbs.
Per the city's website, you can park in the Redondo Pier parking garage and get your ticket validated for one hour. I've always managed to get parking on Esplanade or Catalina.