The competition for roles as a medical science liaison is very tough, as with most non-clinical roles for former clinicians or scientists. Clinical roles are almost always easier to obtain than non-clinical, due to supply and demand.
Requiring the longest maturity time, the Guatemalan avocado needs 15 to 18 months to change from its flowering blooming period to a full harvest. On average, the tree blooms in March and April, but will not be ready for harvesting until the year after between September through January.
Grafting the tree helps the avocado to keep its taste and characteristics and these will bear fruit in 1 to 3 years according to the hort.purdue.edu website. It is best to purchase the tree grafts from your local nursery to ensure quality and taste in the fruit.