Avocado is one of the healthiest and very expensive fruit.
Once the plant is 3-5 years old it start giving fruits.
Faster fruiting plants can be achieved by grafting avocado plants or look for the grafted plant in market.
150 grams of avocado gives 235 calories which is about 10% of daily calorie need for an adult.
Avocado has heart healthy monounsaturated fat and it also lowers cholesterol. Thats why this fruit is in high demand.
They produce fruit more than 50years so if you plant a tree you can easily hand it over to you coming generation too.