What a wonderful idea - I'm already mailing this article to family members.
although obviously Uganda is drier than here, Calgary is (they say) only 3 hours from having a drought, and I believe it!
With our hard clay soil that won't allow a good soaking, and Chinook winds, it's very, very dry. And we have a short summer, to boot!
Anything we can do to increase productivity is a Good thing...
Drought is drought, regardless of your location on the globe! I am so sorry to hear of your dry conditions and hope a Keyhole Garden design can help you out this growing season! Be sure to let us know!!
Good luck to you, and thanks for reading and posting,