"I have some carob seeds and some apple and Siberian pea and wild cherry......
Do I plant them now or wait till fall or Spring??"
I don't know what climate you have there where you are, but some seeds, especially fruit trees seeds from countries which have severe winters need to be kept for long time in low temperature around 5 C or less for example for 6 months - it depends from a specie, so maybe try put them into fridge first and try to sow them in the spring.
You may try to sow some of them now and see if they grow
If yes, let me know
Regards,
Indianka