Spring Front Porch Styling Faux cedar trees in black urn planter with decorative rocks (See below for set up directions!) Welcome Mat layered with Checkered Rug Black outdoor lantern Amazon finds DIRECTIONS FOR THE PLANTERS: To make the trees stand securely in the larger planters and also not blow over in the wind: 1. I filled the bottom of the urn planter with the cheap pond pebbles, centered the tree in the middle, and filled in the sides around the tree’s small pot. 2. Then I added the prettier Mexican Beach pebbles as the top layer. I used one bag of each type of rock, split between the two planters.