Abstract: A modular tree protecting container ensemble consists of eight arcuate and straight connectable modular containers, which when set up and connected to each other around a tree at soil level, provides a protective barrier, forms a water and mulch basin, provides theft-resistance and allows for beautification. The ensemble includes three unique shapes, two of which are corner containers; all three shapes have drainage holes on the container floor, and have identical sidewalls and sidewall connector holes for perfect container-to-container alignment. The tree protecting container ensemble is made up of two corner containers with both arcuate walls, two corner containers with arcuate and right angle-cornered walls, and four straight-sided containers, which are all fastened to each other through their sidewall holes with spacers, rods and rod caps, providing container-to-container connection, ensemble stability and theft-resistance.