A flexible sleeve for containing a pot and/or floral grouping and/or growing or retaining medium. The flexible sleeve has a body and a flap. The body has an outer peripheral surface, an inner peripheral surface and a skirt. The flap is connected to the inner peripheral surface of the body, preferably near the skirt. The flap is adapted to be positioned in: a storage position extending downward, a receiving position extending upward, and a deployed position extending substantially inwardly from the inner peripheral surface of the body when the body is in an open configuration. The flap can be a sheet, or may be folded or slitted. Water or other chemicals my be impregnated into the flap to aid in the maintenance of the floral grouping or growing medium. The flap may also be used to secure the sleeve about the pot and/or floral grouping and/or growing or retaining medium.