Ha, what fun, all of that.
"We buried ours with the 'bottom' an inch or so deep in a big pot of soil. I don't know which side is up, but when they fall out of the tree from 50 ft up, does it matter? "
the 50 foot fall might 'plant' it some way, then washing around in tropical rain and waves might undo it anyway. Googling growing a coconut leads to lots of hits of possibly unreliable info (a reddit question on the topic of "coconut not spawning??"
) but here's a dot org
From Palmtalk.org chat:
Hi Jason,
I would guess it's dehusked, right? If not, you can plant it in a pot with very sandy soil. Let it roll on the ground and plant it on the same orientation where it comes to rest, and about halfway into the soil.
If it IS dehusked (like most they sell at the supermarket), put it in a bucket of water overnight, then you can place it inside a ziplock bag, or just plant it halfway into the soil with the embryo eye just outside of the soil surface (this eye usually is located in the largest third of the coconut and looks a little different than the other two) then throw a piece of plastic on top to hold the moisture. Keep it a little on the dry side, but you should see condensation in the plastic surface.
Remember, coconuts NEED warmth and humidity to sprout; especially warm nights above 68°F. Check it daily and spray fungicide as needed. Good luck!
PS- Remember to select one that has no cracks on the outside! Also, the one with the most water content slushing inside, and healthy eyes.
Edited May 16, 2010 by Trópico