The tree in question is Lagerstroemia indica (Crepe myrtle). It is commonly sourced as multi-stemmed. Depending on cultivar, flower colors range from white, pink,red or purple. The exfoliating bark provides winter interest. Be advised that this tree leafs out very late (end of May) and blooms mid to late summer. It was an existing site element that we kept when remaking the space. Thks for the question!