Congrats! And don't the blooms smell wonderful. You may want to keep them nearby so you can enjoy the fragrance. BTW, butterfly caterpillars will dine on the foliage in summer. It won't hurt the tree and is fun to see the butterflies develop also.
I came close to acquiring a Kumquat they are so tasty. I was also given some marmalade made with them, ground with rinds and all. It was terrific.
Judy ~ in your zone the tree will be fine most of winter outdoors. Only for the hard freezes will it require protection. Somewhere ( when I was researching what to buy ) I found a list of the more hardy citrus.
Yesterday I saw the man that has a Satsuma in ground. He said it was doing well and to my surprise came back with these from his tree. They are yummy!