Another shot. Interesting, right?

Mango's grow in "flushes"
sometimes mines does not produce any new leaves or growth for weeks, or months
then.... it takes off...
also, this seed appears to be polyembryonic
- producing more than one shoot -
which may have something to do with it also.
not to mention, you cant tell whats happening under the soil
root growth could be taking off during the times
that the shoots are not doing anything.

Here's the same type of seedling growing since November.