Four Winds carries them. I've purchased several dwarf citrus trees from this nursery and have always been satisfied. There might be some restrictions on shipping citrus to AZ. You can check on their site. Karyn Here is a link that might be useful: Four Winds Citrus

I placed my kumquat seeds between to pieces of damp paper towels in a zipper food bag and placed over my heater duct outlet. Others I planted in potting soil wit a lid over the container and placed inside one of my heating ducts. Both ways took about a week. My last set of 80 meiwa seeds all rotted. Meiwa kumquats are very hard to start. Today I ate my last 2 Meiwa kumquats and saved 10 seed to through outside in the 20F snow. I am not wasting any more time sprouting Meiwa seeds. Its a lot of work. Steve

The fruitless under the can light Meiwa has finished its growth spurt with a total of 44 linear inches of new twigs with fresh leaves. It is now tied for the second biggest of seed grown Meiwa kumquat trees I picked the fruit off the other Meiwa tree at half ripe and the skin was sweet and the flesh was very juicy but not much flavor in sweet or sour. I was afraid a mouse would get it and it was the only fruit from a seed grown tree. I also picked all the much ripper fruit from my grafted meiwa and the fruit was sweet skinned with semi sweet tart flesh. very much worth eating. This will actually be the last entry for this thread from Me and I will continue this discussion in "4 seed grown 2 year old Meiwa kumquat tree for year 2019". I will leave a link to the new thread when I start it. forget what I said above. I did not expect this much change in one of the trees. Steve

Sorry to hear that about your tree, Hibiscus. My two kumquats died from severe branch dieback. I have no plans to buy another kumquat after that, but I saved seeds from the Marumi and Nagami and planted them. So now I have young seedlings growing from their own roots. We shall see how they do in the future.