"The upbringing"

crianza means upbringing in my dictionary

Educacion is confusing when referring to upbringing, as its primary function is "education" referring to academics. I agree with previous posters that crianza is more appropriate in referring to parental upbringing.

What about crecimiento? Does that mean too much like physically growing?

Both words are valid.

I would say crianza as well

betty and tekjoe are correct!