Antidesma Species, Bignay, Bignai

so ive been growing this from seed for about 6 to 8 months
its about 2ft tall now and we just had 31F temps with frost.
it ...Read Moreburned a few leaves, but the plant still looks healthy.

it likes full sun
PH i think should be between 6.5 and 7
a little chelated iron may help.

it has kind of stopped growing in the last month or so
the container may be getting a bit small too.
but since winter is here now, i will wait to repot it till spring.

Is there any information about it's pH level?