Can I plant the trees before pouring concrete or placing pavers?
No. We have always specified that the tree(s) be planted after concrete / paver installation. Lime leaches out of concrete and elevates the pH of pre-placed tree pit media. Planting after pavement installation reduces the likelihood of planting media contamination and mechanical injury to the tree(s). By following our guidelines the contractors are able to install the root ball at the proper finished elevation, reducing the likelihood of tree root collar burial.