Robert , glad you found the thread!
If you google something like growing capers in California, you will get some good info. There are several studies going on to make this into a specialty crop in California. It is from a warm climate, so I don't know if your temp drops below its comfort zone.
As to elephant garlic, you may know it is a type of leek. My partner grew it and was satisfied with the taste, but it was not a good keeper. I shouldn't have declined his offer of tasting one, as he decided not to grow it again. Enjoy it for me
- Lisa