A few years ago I found a young tree growing in a plastic bag with roots going through the bottom.

It now has a pod growing, any idea please

Jackfruit tree.

 

Jackfruit.

Be warned...it sheds prodigious amounts of leaves year-round.

A new question on an older thread . . . 

What tree is this?

An area of 8 rai near us was raised above road level, I presume for eventual housing, and then planted out in these trees

Fast-growing, under three years since planting, some are approaching 2m tall.

thanks in advance!

Looks like Lime, lemon, orange, Take a leaf crush it in your hand or just rub it with thumb and finger inhale, me thinks you will know. 

up to 4yrs for fruit.  

Not citrus - we grow limes/lemons and on these trees the leaves are 20cm / 8" as in pic

 

From this pic just now using Google Lens, appears it is an acacia, and I think this one:

Acacia mangium (brown salwood) Acacia mangium Willd

Thailand: krathin thepha

Edited June 29, 20233 yr by gomangosteen