I Have a Durling's Ultra-Dwarf Minneola Tangelo that is growing like crazy right now. I have had it in a container for a few months. My 1 year old Durling's Dwarf Mexican Lime was about 2 feet high when I bought it at Armstrong's Nursery. It's in the ground like yours and is now about 6 1/2 feet tall. It gets sun from 9-1:30 Winter/Spring and from 8-3 Summer/Fall. Hope this helps. Picture Link attached

Here is a link that might be useful: Citrus Trees

You have a beautiful collection of citrus trees. It looks like most of yours are grown in containers. I can't believe how much your dwarf mexican lime has grown in such a short time. What do you fertilize your trees with and how often do you fertilize them? I would really like to see my washington navel start growing because the fruit is absolutely delicious.

Thanks! I only have 4 in ground citrus trees. All get Bandini citrus food 16-4-8 (Home Depot) 3 times a year Late Spring (May), Fall (Sept) and Late Winter (Jan/Feb). Waiting for delicious fruit kills me. I guess that's why we have grocery stores...

I have had mixed luck with the growth rates of flying dragon rootstock citrus. 2 years ago, the biggest 3 years trees I had were on flying dragon. Last year a FD rootstock tree I have grew very little even with fertilization. Sorry, no such thing as ultra-dwarf trees even if the label says so. FD grows 60% the size of a standard tree. UCR has introduced virus inoculated trifoliate rootstocks supposed to be dwarfing.

Here is a link that might be useful: mrtexas

I dont let my trees fruit the first year from planting 5 gal pots. I believe it will slow them down. And they cant make enough fruit to be worth while. Try pulling of the fruit and make sure its watered and fertilized. But not to much...