kaz:

You will need to learn when they get ripe in your conditions. That is a matter of trial and error. Of course they may never rippen to anything you like.

The Fruitnut

Are the oranges like fuzzy golf balls? If so you have trifoliate orange and the fruits are inedible.

Here is a picture:

{{gwi:641715}}

Looks great and definitely not the trifoliate. Calamondin maybe? You may well have something that is never going to be great to eat out of hand but squeeze them and dilute the juice with ginger ale, or use the juice on broiled fish, or use otherwise for cooking. The grated peel ("zest") may be useful too.

Looks like a calamondin, use them ripe for cooking or making jam there not bad with a lot of sugar..., or use them (best time ,just as they start to turn orange) as a lemon substitute on food

Thanks so much! Wonder if I can make marmalade.