It is possible to grow a coconut palm from a coconut, if it is an unhusked coconut.
The ones usually sold as food have had their tough fibrous outer coating removed.
The hairy kernel of Cocos nucifera encloses an insignificant embryo amid a large endosperm of meat and liquid.
An unhusked coconut, still filled with milk, will sprout if the seed is buried horizontally and kept wet.
Germination may take months.