In the playground

Back in the Monday afternoon pick-up routine with Luca and Eben. Trampled snow in the playground, still slippery underfoot.
There are two trees on one side that always puzzle me. They sit in a play area carpeted with plastic grass, and their own leaves never seem to change colour or fall. Yet they seem too big to be artificial; they are the size and shape of proper mature trees. One of these days I need to take a closer look.