I don't know enough to say what won't work in AZ, but I highly doubt that there is much variation when it comes to small scale (retail) citrus rootstocks: flying dragon is pretty typical from my understanding. Rootstocks in large scale citrus operations may be more complicated. I would go with the cheaper big box plants, as long as they are good quality and the variety you want. The one year warranty always helps too, especially if there is a problem with the rootstock.

The rootstock is chosen fro its hardiness, so it survived the frost even though the graft didn't. The fruit will not measure up to your Clementine. that's why almost all citrus is grafted - the root are chosen for their ability to resist disease and cold, and the graft is chosen for flavor. Here is a link that might be useful: What's Growing On?

Ksrogers, It is not about so much a saftey issue, as what the following statement I read...........Same as always with the goverment.....MONEY AND TAXES, lol ""Its perfectly legal to brew your own beer or make your own wine at home, as millions of people do. So why is it illegal to make your own distilled spirits at home? The reason is simple - - - taxes. Taxes on beer and wine are low compared to the very high taxes imposed on whiskey, vodka, gin, and all other distilled spirits. Over half the retail price of a bottle of distilled spirits consists of taxes. Congress was pressured by home brewers and wine makers into letting them make their own alcoholic beverages at home in limited quantities. But the government doesnÂt want to lose any of the many billions of dollars it receives each and every year from the very high taxes on distilled spirits. Government officials argue that moonshine is a serious health hazard because many illegal producers use vehicle radiators in the process, which can potentially cause lead poisoning. However, safe home stills could easily be sold to solve that problem. The real issue isnÂt the health risk of contaminated alcohol, but the potential for enormous revenue loss from the production, even in small quantities, of otherwise very heavily taxed liquor."" I have been making wine for years. Some of the older stuff still in carboys,that I was going to pour out some over 5 years old(undrinkable),a friend mentioned he had a Mini still, asked me for it . 5 gal produced almost 1 and a half gal of 138% proof white home brew. He mixed it with some flavored bottle water to reduce it to 80 proof ..Not to bad... As George Jones sang... Well the "G" men, "T" men, revenuers, too Searchin' for the place where he made his brew They were looking, tryin to book him, but my pappy kept a-cookin' Whshhhoooh . . . white lightnin'...

you might want to try the fruit forum.. those peeps have sources ... that most sane people .. never are aware of... lol ken