At its best:
Jun, Jul, Aug, Mar, Apr, May, Dec, Jan, Feb, Sep, Oct, Nov
As it's a long-lived tree, prepare the soil well, working in plenty of organic matter such as well-rotted manure, and blood, fish and bone (a relatively slow-acting feed).
Use a tree tie to keep it securely staked for the first five years.
Leave a circle of bare soil at least 60cm wide around the base to reduce competition from weeds or groundcover plants.