Described are devices and methods for providing protection to plants from cold and other weather. A plant cover or protector is constructed of a translucent or other material, a flexible or bendable material, cut into a two-dimensional blank or shape and provides an easily assembled, self-supporting structure to be placed over one or more plants or a location. The plant protector is erected without the use of tools or need for a separate frame or support. The plant protector may be used with stakes or spikes. The plant protector may be collapsed to a planar configuration. The plant protector may be easily and inexpensively manufactured. The plant protector may be repeatedly used from season to season. A top portion of each plant protector may be easily and quickly closed or opened such as by manual manipulation. The plant protector comprises one or more supports or feet for increased contact with the ground and resilience against wind. The plant protector may be folded from a blank into a three-dimensional frustum or conical shape and placed in a desired location. Other shapes such as hexagonal and octagonal cross sections are possible. A preferred form is tapered from bottom to top.