A planter cover apparatus for a plant and pot, the apparatus includes a surrounding sidewall that has first and second end portions, plus removably engagable first and second margin portions that all act to define a primary interior that the plant is disposed within. The first and second margins form a first aperture and a sidewall first end with an elastic band forms a second aperture that is about the pot. Also included is an extension element having proximal and opposing distal end portions wherein the extension element is affixed to the sidewall with the extension element secured to the pot. Wherein operationally, the elastic band removably engages the pot and the extension element provides support for the sidewall about the plant resulting in protection of the plant from adverse weather, further operationally the cover apparatus is removable from the plant via the first aperture or the second aperture.