Depends where I LA you are, I visited that area 2 years ago and when we toured along the coastal route, I was amazed at the garden centres there was and all were staffed with helpful people especially when the realised we were from Scotland.
Maybe do a search on line for stock of your plants / bulbs, ask for stockists in your local area first, then spread out further area wise IF there's no one close by. maybe someone else will come into the forum and help you if they are closer to your area.
Good luck. WeeNel.