Are here drought-tolerant trees contained by the savanna? ...

Is it possible to own a successful garden...
Answers:    Any tree or shrub that grows in the savanna's of Africa is drought tolerant. One of the most memorable is the "Umbrella Thorn Acacia" Here is a link for you to checkout..
http://www.blueplanetbiomes.org/acacia_t...

Added Info: Taken from (Mindrelief.net)........

....... In parts of Africa rainfall ranges can rise and fall between 100mm and 400mm per year. Precipitation levels hold a direct influence on the type of vegetation that can survive.
o If the region experiences thoroughly low rainfall approximately between 100 ¨C 200mm only grasses will survive the dry season.
o If the region experiences rainfall approximately 250-300 mm the soil will be capable of retain enough moisture to sustain shrubs and grasses through the dry season.
o If the region experiences rainfall surrounded by excess of 300mm there will be ample hose down to support solitary trees.
o If the region experiences rainfall in excess of 400mm the soil can retain plenty water through the dry season, which can facilitate tree growth. The trees should be successful ample to form a canopy that will shade out grasses.

**Billy Ray**
I own a atmosphere dwarf Fuji apple tree....
there's trees at hand??
clearly i cant answer this!!