Brunsvigia bosmaniae, how close can you grow?

What goes on underground with the two flowering Brunsvigia bosmaniae plants in the foreground of this photo being so close together? The about spherical bulbs of usually between 6 cm and 10 cm diameter may already have squeezed each other out of shape down below, while keeping up floral appearances for pollinators and the camera. Grown from the same, or joined bulbs? Unlikely but not certain!

Guidelines regarding respect for personal space of others are often not strong in nature, and not drawn or legislated formally. Among animals, the risk of being eaten or stepped upon makes many keep their distance. Among plants things are more lax. All will live where conditions allow and their seeds have arrived. So, it's soil, water, temperature and the like that keep plants away from anywhere.

Otherwise it is often all-in wrestling. And if it isn’t hard as rock, it might give, so keep pushing. Time is not of the essence, the children will continue. Some don't care whether it is rock either! All that can grow anywhere will do the best they can everywhere. Ancestor efforts may add value for later generations to capitalise upon. And then there's evolution to expand the game. Sagas about these phenomena are at the heart of what hikers learn in the veld.  

This year’s flowering of the B. bosmaniae twins is so far not affected by their extreme juxtaposition. What happens in the future will be dealt with later, all the same laws applying as before (Duncan, et al, 2016; Manning, 2007; iNaturalist; https://pza.sanbi.org; https://www.worldfloraonline.org).