copyright 1982; G.P. Putnam's Sons publishers, New York; smaller hardbound; very good condition with unmarked pages; no dust jacket.
 
Description -
A lonely earth boy befriends an extraterrestrial botanist who, separated from his ship, is left stranded on Earth.  He discovers an extraterrestrial botanist in his mother's vegetable patch, and helps him return to his planet, 3 million light years away.