Q.pot size
what size pot should i use to transplant my new olive tree. it is approx 40 ” high and arrived in a 9″ pot.

Olive trees can survive a number of years in a pot, although they will ultimately need to be planted in the ground to survive. As long as you have a sufficiently large pot, the tree can live up to eight or nine years in it. Keep the pot in full sun. Look for a large, deep and wide pot to allow plenty of room for the roots to grow.
The pot should have adequate drainage holes and be propped up on blocks to ensure the holes are not obstructed. A layer of gravel rocks should be placed at the bottom of the pot. Any commercial, well-draining potting soil should be used.