The University of California Cooperative Extension has something called the Victory Garden Initiative. It helps new gardeners start their own gardens in containers, in their back yard or at a community garden. The idea is to not only gain new knowledge and skills, but to help reduce grocery bills and provide healthy food to families.
The list of Spring classes has been posted and is open to the public. Lead by volunteer master gardeners, these workshops will help ensure that your time in the garden is productive and, excuse the pun, fruitful. Participants become UC-certified Victory Gardeners. Pretty cool, huh?
Classes can be purchased individually or as part of a series. They run from $10 - $30 per class and $30 - $100 per series, depending on whether you are a resident of a particular neighborhood or not (it tends to be less costly if you stick to a neighborhood near you).
For a full list of available classes: UCCE - Grow LA Victory Garden Initiative Classes