Can you let us know a bit about the temps it is living in?

Well, first off, your fertilizing regime needs to be changed. Not nearly even close enough fertilizer for nitrogen-hungry citrus. You need to switch to a granular or liquid fertilizer especially formulated for citrus, and then fertilize every other month. I would go to Armstrong's and talk to them about the best fertilizer for your citrus. There are some great options there. You can see if they have Gro Power Citrus & Avocado Food, which is an excellent product. Also, be sure your potting mix is well draining. Check down 18" or so, to make sure water is not pooling at the bottom of your pot. Your soil looks awfully dense, so don't just think that checking a few inches down is sufficient. If the bottom of the pot is really wet, your citrus roots will eventually suffocate and rot. Next, make sure your tree is getting plenty of sunshine. It appears that your tree is in the shade in your photo. Citrus can tolerate some shade, but really need at least 6 hours of full sun to flower and fruit. Patty S.

Randy, yes your kumquat is doing what it't meant to do..I find Kumquat fruit grow all yr long. If you're worried about foliage, be sure to fertiize with a high nitrogen fertilizer. Toni

Hi DL, I live in FL and for the last 5 yrs I've had a potted Kumquat, I just this last Spring planted it in the ground. I never brought mine inside or protected it...even though we had the coldest winter in over 20 yrs here. The coldest it got was 23ð for a few nights and the rest of the temps were anywhere between 23ð-32ð. I know you live in a much colder area...but just letting you know that I have an old Ortho Book...All About Citrus and Subtropical Fruits that says Kumquat can take it down to around 18ð. I would never tell you that you should do what I did, just letting you know my personal experience with my own tree. Amazingly enough I had fruits around February...it ripened just fine, I thought maybe the fruits would have frozen...considering we had a few weeks of low 20's to low 30's. I'm hoping our normal winter returns this year...with only a few days of frost instead of weeks! I figured it was safe to plant it in the ground since I hope to never see 18ð here,lol... But if you don't want to take a chance because you have a bunch of fruits on them...bring them inside when frost is expected. One thing I do know with Citrus they need cold(not necessarily freezing temps) to change colors from green to orange...Good luck!