A portable sign includes a light weight post and an arm that is pivotally attached by a hinge to an upper portion of the post and can be locked orthogonal to the post. The hinge enables the sign to be collapsed, such that the arm folds against the post, to facilitate storage and transport. In one embodiment, the post includes a shaft configured to be driven into the ground using a rotary drive tool. The shaft includes a head configured to engage the tool, which provides the motive force required to drive the lower portion of the post into the ground. Some exemplary embodiments employ a base configured to surround the lower portion of the post. The base can serve several functions, including providing support for the post, providing a container for flowers, and providing space for additional signage.