Almond trees grow up to be between 4 and 6 meters tall, and need calcium-rich soil and lots of sunlight. One tree can live up to 130 (!!!) years, and fruit-bearing starts after the tree is four years old and lasts for about 50-60 years on average. Fruits are usually collected in September, when the outer layer begins to crack. Three weeks later the fruit dries out and falls off of the yummy edible nut.