We can't seem to grow avocadoes successfully. The first tree was in an exposed site, and although we watered it regularly, after losing it leaves and then regrowing some new ones last summer, the top growth went brown, and then the main trunk went brown and black. We tried another avo this summer, but this time it was in a sheltered location, but the same thing happened. That's $80 down the drain - not sure if I want to go through it again. Would they be hardier if I grew them from seed? It just means a loooong wait for some fruit.