Raised Garden Bed Frost-Heave Protection Kit

The user built a raised garden bed in Wisconsin and is worried about it surviving harsh freezes due to frost heave, seeking advice on fortification. This identifies a common structural vulnerability for outdoor wooden constructions in cold climates. A product offering specific anchors, internal bracing, insulating liners, or a guide with appropriate materials and techniques to protect raised garden beds from frost heave would address this need directly.