Moving a large, filled urban planter box is rarely easy. The combined weight of the container, soil, plants, and water can be substantial, making simple lifting impractical and potentially unsafe. While integrated wheels or a built-in dolly system offer the easiest solution, they are not always present or feasible.
For planters without wheels, several techniques can aid relocation. First, try to reduce the load by temporarily removing some soil or plants. For slightly moving the planter, carefully tilting and rocking it on one edge can allow you to shuffle it forward incrementally. The most effective tool is a separate furniture dolly or heavy-duty plant caddy. Slide the dolly underneath the planter (you may need to tilt the box with a pry bar) to roll it smoothly. For very heavy concrete or stone planters, a levering system with wooden planks and a pry bar can help.
Ultimately, while not an absolute necessity, wheels or a dolly are highly recommended for any large planter you anticipate moving. They prevent back strain, protect your flooring or patio surface, and make routine tasks like cleaning or seasonal rearrangement effortless. For permanent placements, ensure the location is final before filling your planter to its maximum capacity.