Aloe kedongensis branches from the base to form thick clumps of stems, each up to 4 meters long, and either erect or sprawling on the ground.

The slender leaves (60 cm long, 3.5 cm wide) are recurved and without any markings (though the leaves of very young plants often have occasional white blotches on them).

The 50 cm tall inflorescence sometimes has a branch or two, with cylindrical racemes.

Aloe kedongensis is a tetraploid, with four sets of chromosomes.

It is part of a unique group of closely related tetraploid aloes in East Africa, which all share a recent common ancestor, and occur near to each other in a variety of habitats within the region.