I'm not sure how practical it would be and it wouldn't work for many climates, but Mandala's Mango Zamal has a fascinating description...
"Zamal not only grows throughout the year, but one plant can thrive for many years on the island allowing repeated harvests. It is said that some 'ancient' plants reach a height of 20 meters. Most cultivations are found inland in the cirques of Mafate, Salazie or Cilaos, areas often inaccessible otherwise than on foot. A mature plant averages at 2.5-3 meters, it develops a massive tree-like girth and can yield several kilos of bud. In the past the buds were harvested after at least 2-3 years, at 'real' maturity, but nowadays commercialization has set in and nobody wants to wait that long. The zamal is a very vigorous and resistant strain – features that certainly helped it to survive on a tropical island that is battered by hurricanes."