Low growing, the rosettes will get to about 12″ across. We often see them in a dense cluster of rosettes. Not like the picture, which is a tray of single plants – a single set flat if you will – but they will naturally grow a large cluster, even sometimes mounding up higher than the single rosette size.
Botanically speaking, it is probably a hybrid aloe, possibly including some Aloe brevifolia parentage.
In full sun the tips of the leaves will have a rose-colored glow. Hardy down to about 20F, we’ve never lost any to winter here in the Berkeley area of the California coast.