Is your citrus growing in the ground or a pot? Sun is of the utmost importance. Do you apply fertilizer? Toni

Hi Toni, my citrus is kept in a large pot with about 30-40 pounds of soil. I keep in it my home in the winter and in the summer on my back porch out of the direct sunlight because on year I put it out on my front porch, the temperture was in the 90's, the leaves turned from green to yellow in a matter of hours(they were almost scorched. I do give it Miracule Grow but will try a different fertilizer if it would work better. Thank you for answering.

Did you buy this tree yourself? Do you know the variety? How do you know it is a 'dwarf' orange? Could it be a seedling? Can you see a graft point?
A ten year old grafted citrus should be fruiting, but a seedling can take that long to first fruit. It is certainly not "passed the time when it can produce oranges".
In fact that never really happens as long as the tree is alive - and citrus trees can live for several hundred years.

Hi Citrange, I did buy this tree myself out of a magizine, it was tiny at the time, it was 10 years ago and I remember the advertisement said miniture orange tree (is that the same as a dwarf, I live in the city and really haven't had much experience with trees) and when I prune it smells like oranges. I am learning, but do not know what a graft point is, and I don't know if it is seeding, I haven't seen little flowers to know like you do with other plants, like tomatoes or strawberries, only leaves. Any help very much appreciated, thank you!

Tdnc, must be fun hauling the tree outdoors..LOL
What I don't understand is why its leaves yellowed when you placed it outside..if the sun was too strong, and foliage burned, a reddish hue would have marred its leaves.
Citrus love summers outside..fresh air, humidity and yep, full sun..the trick is taking out early in the year..as soon as temps are in the 60's, nights no cooler than 50, (a bit cooler wouldn't hurt) is ideal. Some ppl take plants out say an hour one day, then two the next, but since your tree 'sounds' heavy, haul out on a cloudy day, early morning or evening. Or a day or even a week rain is predicted. Shady spots can burn a plant that's been indoors all winter, (including cactus) so it's just a matter of doing so the right time.
Citrange asked important questions..and he/she's right. If your tree is a seedling, it can take as long as 14 years to produce fruit..grafted flower/fruit a little afer 1 yr old, more at 1 1/2 yrs, 2+ profusely. Don't give up..Toni

Hi Toni, yeah, it great fun hauling the tree in doors in the fall and outside in the spring..LOL I don't know much about Orange trees, but do all of them have branches that have thorn like leaves on them, I have a friend who helps me haul it in and out and we get pretty scratched up waiting for just one orange..I will take your advice and take the tree out on a cloudy day in the morning or evening, maybe try a new fertilizer and see whats happens, I won't give up, never! I appreciate your help! Thank you and take care! If/when an orange appears, I am sending out announcements, LOL!!!!

I know the original post was a year ago, but I thought I would give a try at the problem.
To me it sounds like the tree spends most of its time indoors in a more or less constant temperature. I am no expert but I am pretty sure citrus trees need a certain number of "cooling hours" so that it knows to set flower buds. In addition, all citrus thrive on sunlight. To me it sounds like the tree simply does not "know" what season it is, its waiting for some temperature and other weather related stresses that it never receives.