Buying Jerusalem Artichokes

I want to buy some Jerusalem Artichokes to see if I like eating them before I plant them. I have looked at my local Ralphs and my brother has looked at the local Vons but we did not find any.
Does anyone know where we might find them? We live in the South West corner of Los Angeles CA, very near the intersection of the 91 and 110 freeways. Thank you in advance for all replies.
--
I am TERRIBLY cruel to my cat. I tease him with a vine tendril
until he either jumps up in the air to bat at it or zooms around
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
I have seen them in LA, but they are not called Jerusalem Artichokes. They are called "Sun Chokes."
I probably saw them in Ralphs or Vons, where I usually shop. But I don't see them all the time.
If you do decide to grown them, dig a big hole and put a container in it and plant the chokes in the container. Otherwise they will take over your yard. My dad used an old tin wash tub. If you like the sun chokes you find, you can probably plant a few of them and they should grow into plants. Helen
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.