When we got married (7 years ago!) we bought our parents little trees as thank you gifts for all the things they did for us. We got my parents a red maple tree, that's in my mom's yard. And we got the hubs' parents a monkey tail tree. I read somewhere that they are hearty and strong and grow for years and years. It was a wee thing when we got it, but here's what it looks like now:
It's grown a lot! I think it's happy over at their place on the island.