Aloe is a Tropical plant, and in colder climates is treated as a Houseplant. They come in many varieties, some of which flower,- there are hundreds of them! They cannot survive in temperatures below 10c/55f.
The leaves are spiky and fleshy. 'Cosmo' is an easily cared for houseplant, it originated in the drier regions of South Africa. Aloe 'Cosmo' has a compact rosette of leaves with flowers (usually in the winter) in a reddish colour on a spike-shaped inflorescence.
Source: Garden Tags