[thinkingemote]

Trees can grow from seed. Johnny Appleseed was an American myth about a man who planted thousands of apple trees by hand using pips as he walked across the country. Seeds can be extremely low cost.

Acorns and conkers can be gathered in their thousands each day in the British autumn.

[jandrese]

He's not a myth, he was a real person. Some mythology has been built around him, but he really existed and was quite a character.