Thanks guys. I didn’t realize there was that much variation between latitudes in the tropics. Tao2, please disregard what I said about high 20’s.
Soren, do you know how much warmer the lows are at about sea level in your area? Or how much the temrerature changes as you go to lower or higher elevations?
Anyone know of any webistes that might give one a better understanding of temperature and altitude in the tropics?
From the same site that says this plant extends to 1000 M they list:
Geographic distribution
Native : Angola, Cameroon, Ethiopia, Ghana, Guinea-Bissau, Liberia, Mali, Nigeria, Senegal, Sierra Leone, Sudan, Tanzania, Togo, Uganda, Zambia
Exotic : Indonesia
Looks like Angola (-8-18) and Zambia (-9-18) are the Southern most countries and Mali (10-25) and Sudan (10-22) are the Northern most.
From:
http://en.wikipedia.org/wiki/Climate_of_Zambia#Temperature Most of Zambia is at 1000-1300 M and the mean daily minimum temps in the winter are 6-12 C (43-54 F). Also “Most of the country is frost-free but in some years ground frost occurs. This is restricted to the highest exposed hills, or more widely in the lower humidity areas of the southernmost parts of the country.”