I know it takes several years for a citrus to mature enough from a seed to start fruiting, or to grow “fruiting wood”.
I have a few questions about this. What is the average time from seed to fruit, “fruiting time”. What variety of citrus has the shortest fruiting time? Are there a ways to speed up fruiting time or the growth of fruiting wood.

I'd say it averages 5 years in the ground in a warm climate. No way to speed up. I've had them fruit in 2-5 years. A friend waited 17 years for a cocktail grapefruit to bear. In a container, maybe never.

From Seed to fruit:
Most orange varieties and grapefruit 7-10 year.
Calamodin and Key Lime 2-3 years.
Mandarins 3-5 years
Lemons 3-5 years.
Procimquat 6 months to 1 year

The above times are for in ground trees growing in areas such as southern California or Florida. For containerized trees in the colder regions where the tree spend 6 months of the year indoors add 3-5 additional years. Spend $40.00 purchasing a grafted citrus tree, and have fruit tomorrow.

One way to speed the time up is to keep the growing conditions up year around, so that the tree gets 5 growth flushes each year. (Root temperature 80F+, Air temperatures 73 to 86F, lighting from dusk to 10:00PM) In other words tropical greenhouse conditions. This will cut the waiting time approximately in half from those given above. - Millet

I have been wanting to get a flying dragon to fruit bearing size/age.
How long for them to fruit as a container plant?
I purchased a plant this year that is 2-3 years old, about 18 inches tall.
Also, I have been wondering about what to do with the plant I acquired this year over the winter.
Do I winter it in the basement under lights with my other citrus or put it in the garage?
I know FD is a deciduous plant in the south US and many fruit very well in the wild that way.
Would allowing it to go dormant with my figs in the garage help my fruiting time or would it do better if I do not allow it to go dormant?
Kyle

I have a chinotto that has been in the ground for about 6 years, grown from a seedling a friend gave me. No sign of flowers yet. On the other hand, I have some seedlings of limequat about 3 years old that have young fruit on them.