When you were small, if you ever heard your mother telling stories about how someone has grown an apple tree in his tummy after swallowing an apple's seed, you might prove her wrong when you're grown up. But believe or not, what she said might be possible.

check out this story about how a man swallowed a pea, the wrong way,and ended up with a pea plant growing inside his lung!!!

http://gawker.com/5609753/this-man-had-a-plant-growing-inside-his-lung

The moral of the story is:
1) When you eat, don't rush! Try not to breathe and swallow at the same time.
2) Or, if you cant find a good place for your tree, you might consider this way- a portable biological planting site.

Cheers! Have a nice day!