LPs are Lasiodora parahybana
Brazilian Salmon Pink Birdeaters.
Some grow way faster than others.
G. pulchripes
G. rosea about the same age. Give or take a couple of months.
Then you have something like my G. pulchra that has never molted in my care. 6-7-8 months?
The LPs do grow quick and get huge!
I'm guessing here because I can't really remember when I got them. They went from 1/4" to about 5" in 18 months or so.
But I take it easy with feeding them. If they are plump I'll skip a week or 2, no rush for them to be giants.
It takes years for some of them to become mature